this is the "cbs evening news" with scott pelley. >> schieffer: good evening, scott is off tonight, i'm bob schieffer. hardly a day passes that we don't show you pictures of the great drought of 2012. but the government put out a report today that brings home just how severe it really is, and it's not just farmers and stockmen who are affected. it's going to mean higher priceses for everyone. nearly one quarter of the country is now in extreme or exceptional drought. today for the second month in a row the agriculture department said that means corn and soybean production will be down again. corn down 13%, soybean production down 12%. beef production will also be down 4%. what this means, of course, is that as food production goes down, food prices go up. anthony mason is covering this story. >> reporter: the worst drought in half a century sent corn prices to a record high on the floor of the chicago board of trade today. >> this is not inflation. we don't have any. >> reporter: trader scott shall diof the tri i don't know group is famous on the floor for his cow print jacket. >> you'll see prices at your dinner table rise 3% to 5% and if we don't get an answer to this question it could be a 10% rise for the next six to eight months. >> reporter: the impact will be felt more in some shopping aisles than others. jim dunn is an agricultural economist at penn state. >> the products in the supermarket that are really going to show this are meat, dairy products, and eggs. >> reporter: dunn says animal-based products are taking the biggest hit. corn, for example, is an essential part of the diet for cows. >> of course consumers can make adjustments in what they eat. cows don't have that opportunity. >> reporter: at the austin, texas, supermarket chain whole foods the drought worries co-c.e.o. walter rah. >> it's not good for farmers or concealers in any way, shape, or form but manageable, i think. >> reporter: manageable because the u.s.d.a. says the prices of farm products like corn and soybeans make up only about 14% of the average retail food purchase. even if all farm products doubled, retail food prices would increase just just another 14%. but the drought is increasing demand around the world. the global price of corn jumped 23% last month. >> so you can see volatile prices and higher-than-normal prices until we get a good crop from our own farmers here next year. >> reporter: that's if we get a good crop. the overall impact on the u.s. economy is expected to be modest, though, because american households typically spend about a sixth of their budgets on food and shoppers often switch to cheaper items. >> schieffer: but, you know, anthony, if it does not rain and if these food prices go up 10%, that is going to have an impact. >> reporter: we're going to have a pinch and it won't help an economy already struggling. it's not like gasoline, bob, there's only one place to go. you can switch and people typically do. >> schieffer: thank you very much. now to the other end of the food chain. seth doane looks at the impact this is having on farmers. >> reporter: glen leduc has supported his family as a hay farmer since 1983, this year is the toughest one yet. >> i needed rain in april and may and june to get that crop going. >> reporter: his rain totals sure don't add up to much. >> none in july. >> reporter: no rain at all in july? >> none. >> reporter: his 200 acre farm used to produce 16,000 pounds of hay. this year he's set to harvest only 8,000 pounds. that's half. >> we only can pay half of the bills and the bills are usually a lot, you know? it adds up, you know, it takes fertilizer and fuel and equipment repairs. >> reporter: in some states, hay prices are up as much as 50%. leduc only raised his prices 10% to absorb the cost for loyal customers, including dairy farmer roger wilkening just down the road. >> it's making it expensive to give the cow what is they need. >> reporter: the drought is driving your feed prices up. >> yes. >> reporter: wilkening needs hay to feed his 80 dairy cows. he had to take a loan out in part to afford the hay. for now he can't charge for for his milk. what happens to your profits? >> it goes down or disappears. >> reporter: profits are drying up across these plains. >> we lost about 50 to 60 acres of ground here that we reseeded to put in way due to the drought. >> reporter: that's a big loss. >> a big loss. >> reporter: what does it mean from an income perspective? >> ouch! >> reporter: glen leduc worries the drought is already killing his hay seeds for the next harvest. at this point he hopes just to break even. seth doane, cbs news, edwardsville, illinois. >> schieffer: another side of the drought is that it's been ideal breeding weather for mosquitos that carry west nile virus and there has been a big spike in cases all over the country, especially texas. at least 351 cases have been reported there in dallas county. it's an epidemic there. nine people have died from west nile. man well bojorquez has more. >> reporter: across north texas officials have blanketed communities with pesticide, trying to kill mosquitos spreading the virus. but it hasn't been enough to stop the epidemic in dallas. 78-year-old korean war veteran james blessing didn't know if he'd survived when he checked into a hospital last month. >> when i came in i was just sluggish. the second day i came in i was worse. and the third day it just knocked me on my... flat on my back. >> reporter: officials have urged residents to protect themselves, but with 10 to 15 new confirmed human cases everyday just in dallas county, health and human services director zachary thompson says the time to declare a public health emergency is here. >> this is the worst i've ever seen it. we're talking about a third-world virus in a 21st century country and since 1999 we still don't have a medication for humans. >> reporter: the west nile virus isn't just hitting texas. the latest tracking map from the centers for disease control shows more cases in the south, but west nile activity is now present in all but six of the lower 48. james blessing spent one week in a hospital bed and two more in rehab. his wife mary jo is undergoing chemotherapy treatment for cancer and doesn't think she'd survive the west nile virus. she's scared to go outside. but for now, she's just happy to have her husband back home. >> the doctor said if he hadn't been such a tough guy and all he would haven't made it. >> reporter: and after an emergency meeting this afternoon, state authorities announced they will continue ground spraying starting monday, but in dallas, they are also recommending aerial spraying of pesticides for some areas and that, bob, is something that has not happened in more than 45 years. >> schieffer: thank you very much, manuel. in afghanistan today, another case of americans being killed by a supposed afghan ally. it happened in the south in helmand province. this time it was three marines who were killed and it is the third attack of its kind this week. kitty logan joins us now from kabul. kitty? >> reporter: yes, a u.s. military spokeswoman tells us that the troops were killed by a man in an afghan uniform and u.s. officials have confirmed that those three victims were marine special operations forces. now, local source sources have s a bit more detail. they say the attacker was, in fact, a local policeman and the incident took place at a meeting between marines and local police. they say the incident seemed to be premeditated. but i.s.a.f., the international security forces in afghanistan, say they can't comment on more details or the identity of the attacker because the investigation is still ongoing. but the the local sources turn out to be right and the attacker was, in fact, a local policeman, then this is another case of what the military call a green-on-blue attack: attacks by local afghan forces on the very international troops they're meant to be working with and not against. >> schieffer: thank you very much, kitty. today's attack brought to seven the number of americans killed this week by "green on blue" attacks. this come, of course, as american forces are trying to train the afghans to take control of their own security. david martin, now, with more on that. >> reporter: operating side by side with afghan forces is the linchpin of the american strategy in afghanistan. giving them the support they need to take over the fighting so u.s. troops can come home. it is a daunting task which requires remaking a force plagued by corruption, incompetence, and illiteracy and by a growing number of insider attacks in which an afghan soldier or policeman or someone wearing their uniform turns his weapon on american soldiers like specialist eathan martin whose body came home this week. so far this year, there have been 25 insider attacks compared to 21 in all of 2011. the attacks this year have killed 31 members of the nato coalition fighting in afghanistan-- 17 of them american. put another way: one out of every 12 americans killed this year have died at the hands of their supposed allies. still, general john allen, the commander in afghanistan, insists insider attacks are rare compared to the overall number of troops in what's officially called the international security assistance force-- i.s.a.f. for short. >> every case where one of these occurs, that same day there are tens of thousands-- tens of thousands-- of interactions between the afghans and i.s.a.f. forces that don't go that way. >> reporter: there are 84,000 u.s. troops now in afghanistan along with 40,000 from other countries operating with 332,000 afghan army and police forces. all trying to defeat an enemy estimated at 20,000. those numbers will change as the u.s. draws down its forces. but the americans who stay will remain vulnerable to insider attacks. bob? >> schieffer: thank you, david. in the civil war in syria, government forces continued to pound the city of aleppo today on the ground and from the air. syria's largest city has been you should siege for more than two weeks now. rebel leaders say they are running low on ammunition. the u.n. said today the fighting has created a humanitarian crisis. 150,000 syrian syrians have fleo neighboring countries. lance armstrong tries to block the latest doping charges against him. a memorial service for the victims of the sikh temple shooting. and the rush to save a man as a shark moves in for the kill when the "cbs evening news" continues. hi, i'm phil mickelson. i've been fortunate to win on golf's biggest stages. but when joint pain and stiffness from psoriatic arthritis hit, even the smallest things became difficult. i finally understood what serious joint pain is like. i talked to my rheumatologist and he prescribed enbrel. enbrel can help relieve pain, stiffness, and stop joint damage. because enbrel, etanercept, suppresses your immune system, it may lower your ability to fight infections. serious, sometimes fatal events including infections, tuberculosis, lymphoma, other cancers, and nervous system and blood disorders have occurred. before starting enbrel, your doctor should test you for tuberculosis and discuss whether you've been to a region where certain fungal infections are common. don't start enbrel if you have an infection like the flu. tell your doctor if you're prone to infections, have cuts or sores, have had hepatitis b, have been treated for heart failure, or if, while on enbrel, you experience persistent fever, bruising, bleeding, or paleness. 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[ female announcer ] live the regular life. phillips'. >> schieffer: there was a memorial service in oak creek, wisconsin, today, for the six people killed in the shooting at a sikh temple. hundreds of mourners filled a high school gym. they walked past the open caskets of the five men and one woman who were gunned down by a white supremacist. representing the president, attorney general eric holder told the mourners "we stand with you and we pray with you." in new york city, a police sergeant who was shot in both legs wednesday night got out of the hospital today. detectives are still looking for the gunman who shot the sergeant while he was working with an anti-gang unit in queens. the n.y.p.d. is trying to get guns off the streets with a controversial policy called stop-and-frisk. and we have more on that tonight from elaine quijano. >> reporter: four-year-old lloyd morgan was killed by a stray bullet on a playground in the bronx. jackie rowe adams was at his the bronx. jackie rowe adams was at his funeral, her sixth for a child killed by gun violence in new york city this year. >> it's a war with our children killing each other. >> reporter: rowe adams is the founder of harlem mothers. members are parents of murdered children. >> we have a support group here, mothers-- and now fathers-- who have joined us. not only in harlem but all over the city. >> put the guns down! >> put the peace sign up! >> reporter: her group advocates for stricter gun laws and police tactics focused on getting weapons off the streets. she supports the new york city's police departments stop-and-frisk strategy, which allows officers to search anyone they find suspicious. you support stop-and-frisk. it's a controversial tool. >> see, you have to walk in my shoes to understand when i say stop-and-frisk is needed because maybe if they would have stop and frisked those kids that shot my two kids maybe they would still be alive. >> reporter: in 1982, her 17-year-old son anthony was murdered by two teenagers who didn't like the way he looked at them. 16 years later, her 28-year-old son tyrone was gunned down by a thief. but critics who have protested the policy say the tactic encourages racial profiling. the n.y.p.d.'s own statistics show that 85% of the people who are stopped are latino or african american men. >> that program, if it's broken, it needs to be fixed by community leaders and they need to sit at the table and help fix it. but we certainly don't need to stop it. >> reporter: and she believes parents need to take greater responsibility for their children. >> the parents need to stop and frisk their kids when they leave out that door. we talk about stop and frisk, but the issue now is our kids! and it is blackon black crime because these kids, our little black kids are killing each other. >> reporter: in this street war, she's already lost two children. she's tired of seeing others lose theirs. elaine quijano, cbs news, new york. >> schieffer: we may have nightmares like this next story. a news helicopter spotted a man in the waters off australia today, his boat had sunk, he had been treading water for 20 hours when a hammer head shark began circling and getting closer and closer. fortunately, the chopper scared the shark away and he was rescued. at the olympics, the u.s. men's basketball team was locked in a tough fight for a chance to play for the gold. biking can be really tough on the lower back and your upper thighs. you have some nasty aches and pains. i really like advil® because it takes care of it all. neck ache, shoulder pain and definitely lower back pain. i use advil® because my wife, she's a nurse, she recommended it. 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[ male announcer ] one pill each morning. 24 hours. zero heartburn. >> pelley: a while back, steve hartman introduced us to a man who decided to spruce up his community by painting everything in sight. well, the idea has really caught on. so tonight steve lays on a second coat of "on the road." >> reporter: after jim cotter lost his wife last year he set out to paint the town. but don't judge him too harshly for that, not until you hear the rest of his story. >> i miss her. and this just gives me something that keeps me from missing her more. >> reporter: as we first reported earlier this year, the town jim set out to paint is glouster, ohio, population 2000. once a thriving coal community, it's been both peeling and unappealing for years. >> pretty bad. >> reporter: jim said he always wished someone would fix it up. >> the buildings have become dilapidated. >> reporter: after his wife died, he decided to be that someone. he started by painting this fire hydrant. moved down the road and dill the guardrail, then hit a home stretch. >> one, two, three... >> reporter: he painted house after house. business after business. >> gift shop. >> reporter: all for free. >> it's just amazing what a little bit of paint will do. it changes people's hearts. >> reporter: it also inspires them to join in. over the last few months, volunteers have been coming out of the woodwork to paint the woodwork and help jim reach his goal. it's amazing how this thing has spread. >> it's gone topsy. >> reporter: today you can't walk more than a couple blocks without finding someone painting something. even the high school kids have been tom sawyered into helping. not a painter? not a problem. jim has found a way for pretty much everyone to contribute. and, again, these are all volunteers donating their own time and often their own materials to work on buildings that aren't even their own. >> we're getting something out of it because it makes us feel better about our town. >> it's just what a community ought to do. >> reporter: after our first story aired in may, some people watching were so impressed with jim and the transformation he's inspiring they began making pilgrimages to glouster, some from other states wanting to be part of it. >> look at that mob! >> reporter: last month 260 people showed up in one day alone. together they painted 17 houses, helping jim getting closer to his goal of painting the whole town and inspiring other towns to take on their own seemingly impossible tasks. >> you just have to get off your rear end and get it done. don't wait on the government. don't wait on a grant. and don't wait on money. you've got to do it! and that's the key. wow! >> reporter: sounds like the widower has found a fresh coat of purpose. >> oh, it looks nice. >> reporter: steve hartman, "on the road", in glouster, ohio. >> pelley: that's the news. sunday on "face the nation," i'm going to talk to newt gingrich. plus, stephanie cutter from the obama campaign and eric fehrnstrom from the romney campaign. for scott pelley, i'm bob schieffer. see you right here next week. captioning sponsored by cbs captioned by media access group at wgbh access.wgbh.org we begin with a storm alert once again on a friday. what's up with friday night? >> we're picking up where we left off now in august. we don't have in severe thunderstorm watches just yet and thankfully no warnings. the problem is the trigger mechanism, the front is still to the west of us. we have a long way to go before we're in the clear. let's start with live doppler 9000. around town you want to walk the dog, you have time. maybe have time to get a quick bite outside the next few hours. we'll zoom to the north and to the west. these storms are pretty heavy earlier. they've now dissipated somewhat as they moved up into southern pennsylvania into caroll county. there's still one mo