reporter: the carnage you re describing sounds like something out of world war ii. yeah. o donnell: in tonight s eye on america, cbs ben tracy on how parts of the mighty mississippi now look like a desert and why that could impact the price of things you buy. and, the new york city bus driver being hailed a hero after a hijacking. this is the cbs evening news with norah o donnell, reporting from the nation s capital. o donnell: good evening to our viewers in the west and thank you for joining us. tonight, we return to a community still in pain, still searching for answers, and still wondering why it took police more than an hour to enter the classroom where a gunman was murdering fourth graders. at a hearing today, families had their first face-to-face confrontation with the texas public safety chief. he s the one in charge of the dozens of state troopers who waited in the hallway during the deadliest elementary school shooting in a decade. today, colonel s
korea? plus mourning the mighty mississippi. the concern over his conditions spreads way beyond its banks. we can dredge it to a certain point and then mother nature wins. and later, taking wane. look at that. the children leading the fight to save the monarch butterfly. this is the cbs weekend news from new york with jericka duncan. good evening, and thanks for joining us on this sunday. tonight, we are learning new information about the attack on paul pelosi, he s the husband of house speaker nancy pelosi. cbs news has confirmed that investigators have determined that the suspect had a list of the people he wanted to target. the suspect had a bag of zip ties. along with the hammer he brought to the home. the speaker says her husband is making progress. the suspect meanwhile will be officially charged tomorrow. he s expected to be arraigned on tuesday. jonathan vigliotti. nancy pelosi says her family is heartbroken and traumatized. meanwhile tonight, her hu
and petroleum to fertilizer and road sal how important is this river to moving goods around this country? the mississippi river is a vital transportation artery. it s absolutely a water super highway. annually, we ll move 500 million tons give or take. if you wanted to put that on trucks, you could circle the earth 13 times with trucks bumper-to-bumper. billions of dollars in economic losses, and higher prices for consumers are expected as the drought drags on. what s your biggest concern? no clouds. no rain. and you need more than a litle rain. a lot more. bo delarco is chief of operations for the army corps of engineers. the city is now the gateway to growing problems down river. the army corp has been dredging nonstop for months. desperately trying to keep a
so, this is a serious issue about who s going to feed the world, if america can t get its agriculture products out. reporter: these massive barges also carry everything from coal and petroleum to fertilizer and road salt. this is like a super highway. it is absolutely a water super-highway. this is irreplaceable. we have got to keep commerce moving. reporter: that s the job of the army corps of engineers. it s been dredging the river nonstop for three months. so you guys are doing this 24/7. 24/7. reporter: near st. louis, they are desperately trying to maintain a nine-foot-deep shipping channel, sucking up enough sand and silt to fill an olympic-sized swimming pool every hour. so we ve had three dredges working in our reach of the river to keep the thing open based on the forecast. reporter: if this drought continues, can you dredge your way out of this? we can dredge it to a certain point, and then mother nature wins. reporter: climate change is making mother nature