>> thank you. governor romney, mitt, it's a pleasure to welcome you to jerusalem. >> reporter: calling him mitt, israeli prime minister benjamin netanyahu welcomed an old friend to israel. netanyahu and romney worked together years ago, and now he's looking to send a message, that matters it at a time when a staunch american ally wrestles with what to do about iran. one of your advisers said you would respect israel's decision to strike iran on its own. would you support an israeli strike on iran? >> i think i'll use my own terms in that regard, and that is that i recognize the right of israel to defend itself. at the same time, we are as two nations both committed to employing every means we have to keep iran from pursuing their nuclear folly, and that means every diplomatic course, economic forces, as well. sanctions are beginning to have a greater impact on iran. >> reporter: you talk b diplomacy, tough sanctions. sounds an awful lot like what we hear from the obama administration. is there a difference? >> you know, i gave an address five years ago. >> reporter: an address in tel aviv outlining what he thought. >> it's taken a long time for those to be executed. some are still not executed. >> reporter: like what? >> being on foreign soil, i simply don't want to attack the president or his policies nor make new foreign policy. >> reporter: he told me he wishes there had been tougher sanctions on iran earlier. as romney makes this trip overseas to burnish his foreign credentials, he knows the politics continue back home. while in london romney reiterated he will release two years and two years only of his taxes just as john mccain did. we know that there was one year where you paid about a 13.9% tax rate. can we clear this up by asking a simple yes or no question? was there ever any year when you paid lower than the 13.9% then? >> i haven't calculated that. i'm happy to go back and look but my view is i have paid all the taxes required by law. i don't pay more than are legally due, and, frankly, if i had paid more than are legally due, i don't think i'd be qualified to become president. i think people would want me to follow the law and pay only what the tax code requires. >> reporter: you say you would go back and look. you would look for us? >> i haven't looked at the tax rate paid year by year. i know that i pay a very substantial amount of taxes and every year since the beginning of my career so far as i can recall. >> reporter: the romney campaign has made it clear that no matter how many years they release, it will not stop the obama campaign from wanting more. we also talked london where he and ann went to the opening ceremonies, the swimming competition and, of course, those headlines when he expressed reservations about how well the games would go. if you got a do over, would you answer the same way? >> you know, i tend to tell people what i actually believe and the comments made in the media is something which i felt was an honest reflection of what was being concerned or what was concerning folks. >> reporter: and with just 100 days now until the election, romney told us when it comes to the debates, he'll be prepared. do you think the president is going to be a formidable opponent on that debate stage? >> absolutely. the president was a very effective debater in the last round. he's a brilliant orator. i would expect him to be very effective on the debate stage. >> reporter: but governor romney also telling me that he believes four years later on that debate stage, it will not be about just words, but about two different courses, two different paths for america to choose from. the governor one on one with us here today. later tonight on the broadcast, what we learn from romney himself about that visit to the western wall with his wife ann. what we didn't realize earlier here today in jerusalem. but we do move on this evening to those fast-moving developments in syria where rebels are hanging on in the against a fierce assault with government firepower. alex marquardt has made his way to northern syria and the mother of all battles. alex? >> reporter: good evening. fighting continues to rage today in aleppo, syria's commercial capital. regime forces shelled neighborhoods recently taken by opposition forces who are desperately clinging on and calling for heavier weapons. we crossed into syria early this morning. our first stop was ater ebd that has seen heavy violence. the devastation was stagger. hardly a single building left untouched and virtually a ghost town. also remarkable was traveling all day across northern syria, we didn't see a single government tank or troop, which tells you how far these opposition forces have come but until they take a city like aleppo they still have a long way to go. david? >> alex marquardt tonight, thank you. alex will be monitoring this crucial moment in the syria uprising. you can follow his reporting on "good morning america" and, of course, right here on "world news." we turn next tonight to a much different image. this one out of london. the olympic games being watched all over the world. and this evening some welcome victories, some surprising upsets. so we turn again tonight to abc's jeffrey kofman part of your team in london. >> reporter: the u.s. team struck gold today for skeet shooter kim rhode. a medical an and american record. she became the first to win individual medals at five straight olympics, and she's only 33. yes, she won her first gold way back in atlanta in 1996 at age 17. another gold in the pool where dana vollmer broke the world record in the 100-meter butterfly. 59.98 seconds. but a disappointing silver for the men's 400-meter relay that included swimming stars michael phelps and ryan lochte. after the u.s. dominated the race france squeaked by and nabbed gold. in gymnastics they outdefended champs china with aly raisman and gabby douglas in top position. devastating for u.s. gold medal favorite jordyn wieber who was just behind her teammate, the tears said it all, she is automatically eliminated. "it was hard because, of course, i wanted a spot," she said in the statement, "but i also wanted aly to do her best." a thrilling afternoon of basketball as the u.s. goes after a second straight gold medal. the american dream team beat france 98-71. cheering them on first lady michelle obama, who got to hug every team member at the end. >> welcome to our british summer, ladies and gentlemen. summertime has started. >> reporter: on day two the sun gave way to london rain and chilly temperatures. the biggest controversy so far, all those seats reserved for olympic officials and their friends that are sitting empty. olympic officials often criticized for their perks moved quickly to neutralize what was fast becoming a public relations disaster. from now on when official seats are empty, they will be given to british soldiers. david? >> filling those seats with some deserving fans. jeffrey kofman in london tonight, thank you. i'll have more from jerusalem later here as we revisit those iconic images, some famous faces visiting the western wall, but there is a lot of other news to get to. sharyn alfonsi back at the anchor desk. sharyn? >> thank you, david. >> thousands are facing the grim responsibility that they may have been infected with hepatitis c. the suspect, a traveling medical technician, the potential victims, patients at more than a dozen hospitals in eight states where he worked, all of them now waiting to find out. abc's david kerley has the latest. >> reporter: while this man, labeled a serial infector, is in jail, at least 30 people are now living with the results of his alleged crime, a dangerous disease. >> crazy. how did i -- you know, how did i get this? >> reporter: this new hampshire man, who doesn't want his name used, was in the hospital for a heart treatment last year. the same hospital where medical technician david kwiatkowski works charged with alleged ly spreading hepatitis c which can cause serious liver problems. >> i'm getting healthier because with the heart disease and all of a sudden, bang, you get this. >> reporter: kwiatkowski faces federal charges of stealing syringes of drugs, injecting himself to get high and refilling the syringes with another liquid. those contaminated syringes were returned and used on patients, 3,400 patients at this new hampshire hospital are being told to get tested. many are not happy because state health officials postponed this weekend's testing saying they aren't ready. >> the fact that i don't know if i could have it, if i could have possibly contracted it while i was there is stressful. >> reporter: and it's not just new hampshire. kwiatkowski was a traveling temporary medical worker, and in the past five years, he's worked in 8 states, 13 hospitals leaving thousands of patients wondering if they too might be injected. several of those already infected are planning to sue. new hampshire officials hope to have a test set for those 3,400 former patients by early this week, some planned, and arizona hopes to notify 200 patients there about the possible exposure tomorrow. sharyn? >> all right, thank you, david kerley in washington tonight. and the american red cross is sounding the alarm tonight about a critical shortage in the nation's blood supply. the worst in more than a decade and there's a surprising reason why. abc's ryan owens explains. >> reporter: severe weather can knock out power, blow down trees and flood streets. but this year all those summer storms hit something else, the nation's blood supply. the american red cross says the supply has dropped to its lowest level in 15 years. >> it puts our community in a very difficult situation. patients don't get vacations. they're in the hospital, and they need blood. >> reporter: summer is always slow, but the red cross says this month's severe weather canceled many blood drives. what's more, doctors say the extreme heat is keeping many regular donors at home this summer. >> you never know who is going to be the next person that needs blood. it might be your next-door neighbor. it might be your child, and it might be you. >> reporter: hospitals may soon cancel some elective surgeries or even postpone more serious procedures because they require so much blood. >> patients who are having elective procedures are also encouraged to donate blood two or three months ahead of time for their surgery to ensure that their procedure is not canceled. >> reporter: august is traditionally the slowest month for blood donations, but the red cross is hoping by sounding the alarm now, they can weather this storm too. ryan owens, abc news, los angeles. and from colorado tonight, news of another heartbreaking loss after the shooting at the movie theater a week ago. it comes as the young man accused in the attack prepares to face charges tomorrow. abc's clayton sandell has the story. >> reporter: for ashley moser's family tonight there is deep and double sorrow. her daughter veronica just 6 years old was the youngest to die that night. >> she was loved everywhere she went, and she always wanted to be heard and wherever veronica was, you knew she was there. >> reporter: now veronica's grandmother says ashley, who was pregnant when she was shot several times, has suffered a miscarriage. >> it was because of stress. it was because of trauma. it was -- ashley has been through a lot. her body was trying to mend other areas of herself. >> reporter: on monday accused shooter james holmes will be in court to hear the charges against him including 12 counts of murder. while a grad student, holmes was a psychiatric patient, and while it's still early, the former head of the state public defender's office predicts holmes will claim insanity. >> clearly what you're looking at is somebody who has serious mental health issues, and there's no question that that's what's being explored as we speak by those people representing him. >> reporter: anna moser says she will be at the courtroom tomorrow, and if she can talk to james holmes, knows exactly what she would tell him. >> how dare you. who gave you the right? i don't care what your motive is. he knew what he was doing. and that's it. i want to see him -- i want to see justice. >> reporter: clayton sandell, abc news, aurora, colorado. >> heartbreaking. and going back to london now, a startling image from the opening ceremony. there in the red shirt right alongside the indian athletes in yellow and black, an apparent parade crasher. an olympic official says she was a cast member helping with the event and was not supposed to walk out into the stadium but apparently she got caught up in all the excitement. still ahead on "world news" this sunday, the thrill of victory and the agony of defeat. we're not talking about the olympians but their parents. some of the most memorable images from the game when we come back. did you know when heartburn, it's too late to take prilosec because... but it's but zantac® works differently. it relieves heartburn in as little as 30 minutes. in fact, so, when heartburn strikes, try zantac® this has been medifacts for zantac® i wish i could keep it this way. 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[ male announcer ] if you can't afford your medication, astrazeneca may be able to help. most of us watch the olympic games in awe, but there's one group of fan, super fan, if you will, that can barely watch without getting sick to their stomach. abc's nick schifrin with the agony and ecstasy of being an olympian's parent. >> reporter: behind every olympian, behind every medalist are those that support them. that is 28-year-old peter vanderkaay, bronze medalist, three-time olympian and those are his parents. do you think you guys deserve a little credit for his success? >> there had to be some discipline and some order and structure and if there wasn't, i'm not so sure that maybe he would have gone as far as he did. >> reporter: vanderkaay says his parents are his greatest influence. it hasn't been easy. thousands of hours in the pool, economic sacrifices, missed vacations, but this weekend, it all paid off. >> vanderkaay the bronze. >> reporter: but, oh, is it so hard to watch. look at this image yesterday. john orozco on the pommel horse and there's his mother in the stands. >> reporter: can you watch when he's actually competing? >> yeah. there's been times i thought i'm going to go out in the hall. because i don't know if i can do this. >> reporter: robin and mark say they used to swim and it's harder to watch than compete. >> you have no control if you're a control freak mom. >> yeah. >> not you, of course. of course not. >> right. >> you just want to get right behind him, give him a push. do something. but, of course, that's not possible. >> reporter: but they know that they've been giving him that push for 28 years. the vanderkaays told me that their sacrifices have been worth it but admit it doesn't always come out as well as it did for peter this weekend, and when that happens, sharyn, parents here say they share every ounce of disappointment felt by their olympic sons and daughters. >> you know they do. they must be so proud and so nervous. still ahead on "world news," locking up the baby formula? we'll tell you which city's mayor is now proposing formula be kept away from newborns and their mothers. if you suffer from heartburn 2 or more days a week, why use temporary treatments when you can prevent the acid that's causing it with prevacid24hr. with one pill prevacid24hr works at the source to prevent the acid that causes frequent heartburn all day and all night. and with new prevacid24hr perks, you can earn rewards from dinner deals to music downloads for purchasing prevacid24hr. prevent acid all day and all night for 24 hours with prevacid24hr. prevent acid all day and all night for 24 hours [ feedback ] attention, well, everyone. you can now try snapshot from progressive free for 30 days. just plug this into your car, and your good driving can save you up to 30%. you could even try it without switching your insurance. why not give it a shot? carry on. now you can test-drive snapshot before you switch. visit progressive.com today. diarrhea, gas or bloating? get ahead of it! one phillips' colon health probiotic cap a day helps defend against digestive issues with three strains of good bacteria. hit me! 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"we wish to commit ourselves to genuine brotherhood with the people," and tonight two more prayers added with quiet wishes from america. all of those powerful moments from the western wall. that is the broadcast tonight from jerusalem. diane sawyer right back at the desk tomorrow night. for sharyn alfonsi back in new york and all of us here at abc news, have a good evening. good night from jerusalem. >> ama: next at 6:00. superman gets stuck and passengers get trapped on a ride at six flags in vallejo. >> a child is injured after he is attacked by a pit bull at his baby-sit's house. >> man intentionally runs over a box of kittens. abc-7 news starts right now. breaking news tonight. a scare for dozens of passengers, trapped on a ride at six flags discovery kingdom. i'm ama daetz. alan wang has the night off. this is a look at the scene from sky 7hd, where riders were stuck on the new superman ride at the vallejo amusement park for two hours. sergio quintana is live on the scene with the latest. >> reporter: like you mixed, a little over two hours stuck on the brand new ride. this superman coaster ride just opened up less than a month ago. june 30th is when it opened up. this has been an attraction that rite now is shut down until further notice. it was just after 2:00 p.m. this afternoon when park pate electrons noticed something wrong on top of the superman coaster. a dozen people were on board when the twin coaster cars suddenly stopped right on top of the rails. rescue crews and ride engineers used a large dine get up to the passenger expoz to work on the car's undercarriage. vallejo fire crews say no one needed medical attention but they did pass out water and sun screen. in the end, the coaster car safely came down and passengers walked away unharmed. >> with the plan of releasing the train if possible. that's our first plan of action. that's the safest.