>> axelrod: tonight, back in the air. air traffic controllers will head back to work, easing flight delays and cancellations. carter efoons what's next. midwest flood watch. terrell brown follows the cresting waters across nine states. inside the oyster war on one of america's most scenic coastlines. john black stone with environmentalists taking sides against each other. and meet the young innovator who's working to develop new sources of sustainable energy under her bed. >> as human beings, we are scientists because we're curious. we question. that's what science captioning sponsored by cbs this is the "cbs evening news." >> axelrod: good evening. i'm jim axelrod. the federallationave

administration is ordering all its air traffic controllers back to work. the f.a.a. says control towers will be fully staffed again by tomorrow night. this follows a rough week on runways across the country. more than 5,000 delays and hundreds of cancellations. 15,000 air traffic controllers had been furloughed after mandatory federal budget cuts known as the sequester, and there simply weren't enough of them to handle the volume. as carter evans reports, congress' solution to this problem may create plenty of others. >> reporter: it seems members of congress couldn't eave washington fast enough for their week-long recess, even after a rare show of unity. both sides agreed to quickly end the air traffic controller furloughs, whic which caused thousands of flight delays. is what we saw congress at its best or congress at its worst? >> i don't think it's congress at its best. >> democratic congresswoman karen bass arrived home friday night on time but with plenty of

unfinished business remning in washington. thousands of government services still face significant cuts, ranginranging from the militaryo road construction to childed care. >> what i'm worried about is that we're going to address it in a piecemeal fashion. >> reporter: the week of flight delays is the first time the cuts were widely felt by the public. new york republican congressman peter king: >> i think the whole idea of sequester could start to come unraveled because we can have any number of other instances like this where people are needlessly inconvenienced. >> we are dysfunctional right now, and i think it's going to take an outcry from people around the country to say, "do your job." >> reporter: whether congress actually did its job is still up for debate among travelers at reagan national airport. >> they should have preemptively done something about this. this is ridiculous that they thereto get to this point. >> it's just how they do business. it's how it's done these days. they wait until somebody squeaks or scwawks and it's how they do it. >> reporter: the white house confirmed the president will

sign the bill once it reaches his desk. but that may not happen now until tuesday because of a typo in the senate version of the legislation. but, jim, we've learned that will not delay air traffic controllers from going back to work tomorrow. >> axelrod: carter, thank you. there's been another arrest in the case of those poison letters sent to president obama and others. federal agents in tiewp low, millis mis, arrested james everett dutschke for sending letters lailsed with ricin. he reportedly had a troubled relationship with paul kevin curtis, the man first arrested but later cleared. investigators in new york city are focused on an 18-inch gap between two buildings in lower manhattan near ground zero. that's where a discovery was made of what appears to be part of the landing gear from one of the planes that crashed into the twin towers in 2001. the the medical examiner's office plans to search the area for human remains. now to boston and the investigation into the marathon bombing.

we are learning tonight that russian authorities secretly recorded a phone call in 2011 betweebetween tamerlan tsarnaevd his mother. in the call, the two spoke about jihad. the u.s. government learned of the wiretap just within the last few days. elaine quijano has the latest on the investigation. >> reporter: authorities have ended their two-day search of a landfill 60 miles south of boston near where dzhokar tsarnaev attended college. sources say investigators were looking for laptop computers as they try to determine what shape the tsarnaev brothers' views. investigators believed the brothers were influenced by the online preachings of islamic radicals, include anwar al-awlaki. >> the simple answer is america cannot and will not win. >> reporter: the american-born cleric was a leader of al qaeda's affiliate iniemen and linked to multiple plots in the u.s., among them, the attempted underwear bombing of a detroit-bound airliner on christmas day.

al-awlaki was killed in a u.s. drone strike in 2011. authorities are also examining what they believe to be a twitter account of dzhokar tsarnaev, which includes a tweet in russian last year saying, "i will get killed young." but tsarnaev may have shared that account with another person. in watertown, where dzhokar tsarnaev was captured eight days ago, investigators towed away the boat where he had been hiding. police now say the 19-year-old did not have a weapon and did not shoot himself or at police before his arrest. tsarnaev is now being held at a federal prison hospital 40 miles from boston. tributes to bomb victims continued today. eight-year-old martin richard, who was killed in the marathon attack, was honored in dorchester where he played little league. it was the first day of the season. the town's firefighters all wore shirts with his name and age. 30 people remain in the hospital tonight. jim, one of them is in critical condition. >> axelrod: elaine quijano in

boston for us tonight, thank you. supreme court justice steven breyer is in a washington hospital tonight recovering from a broken shelter. the 74-year-old justice fell off his bicycle yesterday. a spokeswoman says i expected to make a full recovery. in the midwest, a cycle of torrential storms is sending rivers over their banks. the flooding started last week along the mississippi, illinois, and red rivers. as terrell brown reports, it may not be as bad as first feared but no one is breathing easy yet, either. >> reporter: a levee breach in lincoln county, missouri, turn's bob's creek into a raging river. the flooforts have taken aim at the town's 30 homes. >> you don't really know, but you have to be prepared. >> reporter: flooding has hit parts of nine midwest states. the illinois river in mason county reached through front doors and windows. >> you think you're okay because they've told you it's crested and everything and right away, within eight hours, overnight,

here it was in my house up a foot deep in the basement. >> reporter: elsewhere, illinois' wabash river is at its highest level since 1943. residents in two communities have been told to get out of its way. >> we are dealing with a lot of rain and these storm systems are tracking over the same areas producing widespread flooding over the midwest. >> reporter: in north dakota, it's not rain but melting snow that's threatening to push the ret river over its banks. all hands were on deck in fargo to build a levee. the river is expected to crest some time next week only a couple feet shy of a record set back in 2009. the rain has provided some relief from the months of bone-dry conditions in the midwest, but it's too much, too fast. >> the unfortunate news is we are anticipating another storm system to roll across the area. the flooding conditions will likely resume. >> reporter: and residents in the flood plane can only watch

and wait. >> axelrod: north korea says it will put a korean american on friel charged with plotting to overthrow the government. kenneth bae is a u.s. citizen and tour operatorred arrested last november. it's unclear exact we lee what he's accused of doing though a south korean newspaper reports they may have taken pictures of homeless north korean children. 16 people are under arrest in bangula besh. there is a frantic search and reive ewing effort under way at the factory site. kelly cobiella has more. >> reporter: for three days, rescuers digging through a mountain of rubble have been saving people. some 2300 rescued, 28 today. more than 3,000 factory workers were inside when the building collapsed wednesday. hundreds are dead. some are buried alive, by mohammed's with with wife. he says she phoned him to say

she was trapped near a bathroom. on tuesday, police inspected cracks in the building which housed five clothing manufacturers. survivors say their bosses told them to keep working. he said wednesday morning the building shook. there was panic, a stampede, then it crumbled. police have arrested six people, including two factory owners and two engineers, who declared the building safe tuesday. the building owner is on the run. anger is spreading among the country's 3.5 million garment workers who are paid $40 a month on average to work in poorly built factories. 700 have died in factory fires since 2006, more than 100 last november at this factory which made clothes for wal-mart. western retailers have openly criticizes the factories for unsafe working conditions but continue to place orders.

now, with more than 300 deadline and 500 missing, the question is will this be too high a price for cheap clothing? kelly cobiella, cbs news, london. >> axelrod: later, teenagers in boston and their lingering fears about the bombing there. a young innovator in colhoping to develop energy that couldn't be greener. and california environmentalists at odds over oysters. those stories when the cbs evening news continue continues. to reduce my risk of fractures. prolia® is proven to help make bones stronger. i take prolia®. it's different- it's two shots a year. do not take prolia® if you are pregnant, are allergic to it or if you take xgeva® ..prolia® can cause serious side effects, including low blood calcium levels,

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grounded the fleet worldwide in january. the online deals web site livingsocial has been hacked. the company says this means the names, e-mails, birth dates and passwords of more than 50 million customers worldwide have told, credit card information.re on the california coast, there's an uncommon dispute brewing-- environmentalist versus environmentalist. it all started with federal plans to create a marine wilderness area north of san francisco. and now, stuck in the middle: oyster eaters. here's john blackstone. >> reporter: at the wild and scenic point reyes earl ray national seashore, oyster lovers have flock to the drakes bay oyster farm for nearly half a century. the farm's owner has gone to court fighting a national park service order to close down. >> we got into this business because we wanted to be oyster farmers, and we find ourselves spending almost all our time in a debate that we hoped we wouldn't have to have.

>> reporter: a debate that's pitting northern california environmentalists against northern california foodies. >> those little drakes bay oysters are the best cooking oysters in the world, i think. >> hand-fried in a little clarified butter and olive oil, and they come out so delicate. >> reporter: but to environmental groups, there is nothing delicate about a commercial oyster farm operating in what's supposed to be wilderness. they support the park service decision to close the farm after its 40-year lease ran out last year. >> the oyster company and its allies have completely manufactured a controversy against the parks service. >> reporter: defenders of the oyster farm say it's an example of sustainable agriculture, which is good for the environment. >> i consider myself a leader in being a friend of the environment. >> this is the most unusual and

uncomfortable situation to be in when environmentalists are at odds with environmentalists. >> reporter: a bill now before congress could save the oyster farm, but it would also open more coastline to another business, oil drilling. both sides worry, for the environment, that is a raw deal. >> they've introduced legislation that are sort of environmental wrecking balls. >> they're using our poor little oyster farm. they're using these people. it's... i think it's unconscionable. >> reporter: it's a battle threatening to leave everyone shell-shocked. john blackstone, cbs news, san francisco. >> axelrod: next up, security concerns in the aftermath of the bombings in boston. teenagers there question just how safe they really are. e the .

marathon bombs, it had been nearly 12 years since the last major terrorist attack on u.s. soil. among the fallout from the attacks, the question many americans are asking once again-- just how safe are we? dn with members of a generation asking that question for the first time. >> there were a lot of people

screaming and there were a lot of loud noises. >> 14-year-old best friends lily henderson, and hannah wolfberg were shopping one block away from where the bombs went off. >> it's, like, hard to describe but it looked like sheer terror. >> it was kind of like from what you see in, like, movies. it literally was like that. like, everyone was running as fast as they could, like, away from the explosion. >> reporter: lily's cousin, 23-year-old stephanie wolfberg, was standing midway between the two explosions. >> most frightening part of the day was the news kept reporting that there were more undetonated bombs across want city, so the idea was you couldn't go anywhere. you didn't know where the next explosion was. >> there were all these, like, helicopters and, like, army, like, swat vehicles and policemen and all that, people with gubz. >> reporter: 15-year-old sasha morris' brush with terror came four days later when his neighborhood became the center of the hunt for bomber dzhokar tsarnaev. >> i was so nervous and just

like there was so much just,y like, emotion emotions in me. i tried to thereto all out texting my friends, facebook, posting stuff, messaging people. >> reporter: what were grown-ups saying to you in the last week to try to make you feel better? >> they kept saying, like, "don't worry. there's not going to be another one." and, like, "don't worry, you're safe." and don't worry, like, everything's going to be okay. >> reporter: did you believe them? >> nnd that was, like the scariest part was i was thinking. no, you're wrong. how do you know that? >> reporter: lily, how did you handle it after the marathon. >> i feel like it hasn't really sunk in yet. >> is the environment that we're in today where things like this happen all too often, is th always going to be the enviroent we're in? when i have kids in 10, 15 years, you know, are we going to feel safer, less safe? >> obviously, you can't forget it, but then you also have to just make sure you're okay and not think about it 24/7 and, y

, focus on normal, like, teenaged high school things. i think that's the only way to be okay right now. >> axelrod: dr. jon lapook joins us now. jon, in your piece, hannah wolfberg said she didn't trust what the grown-ups were telling her. so what do you tell the kids in that situation. >> reporter: jim, as a father, what hannah said really got to me. of course you cannot lie to a kid. every expert i have spoken to said the same thing-- you have to stay calm yourself, meant a normal routine, and try the best you can to let them know their world is safe. yes, some crazy things can happen but you're safe. and of course it's not just talking. it's listening and observing. it's almost two weeks later after the disaster. is there anxiety, trouble sleeping, anything to suggest posttraumatic stress disorder is developing and that can respond very well to professional help. >> axelrod: so not just what you're saying but what you're seeing and hearing. >> reporter: absolutely.

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her room might hinder the development of ieflt fuels. >> 3.14 195. >> like manyteenagers, sara volz loves a piece of pie. although not the snack kind, the math kind. >> 75449. >> she memorized the first 80 digits of pi air, number that' endless, in sixth grae. now the 17-year-old's intellect is attracting promising attention. take this week, for instance. >> we have sara volz, who is breeding new times of algae. where is sarah? ( applause ). thee stores thn a lab in her bedroom. ( laughter ). , of so, sara, you have very supportive parents. gliment president wasn't kidding. volz has a state-of-the-art laboratory under her bed in her home in colorado springs. >> i've been interested in increasing oil yields of algae for four years.

>> axelrod: there she's trying to develop a way to convert algae into an alternative fuel source. that's where every scientist keeps their lab source. >> they have to be really closely monitored and sometimes i'm sampling every day or more than once a day. for that i need something a little closer to home. >> axelrod: this isn't some kid playing in a room. >> sara volz. ( applause ) >> reporter: sara volz just won the intel science talent search. what did you win? >> $100,000. >> reporter: the money should help with tuitn emass husetts inste technology. >> not only is it just really hard-core, you know, intellectual and hard-core science. it's also just really welcoming and fun. so you got this really important reaction. you've got carbon dioxide going into the cell. >> reporter: volz will be a freshman here next fall. so tell me what you're going to do with your life. >> i'm thinking i want to go into academia, so do basically what i'm doing except with better labs.

>labs. >> axelrod: not that the one under her bed has limitedccess . >> as human beings we scient because we're curious. we question. that's what science is. >> axelrod: and sarah's talents until the classroom are not limited to being a student. she's not bad as a teacher, either, writing tests and preparing members of her high school's science olympiad team. and that is the cbs evening news for tonight. later on cbs "48 hours." for now, i'm jim axelrod in new york. for all of us here at cbs news, thanks for joining us and good night. ptiong sponsoreds captioned by media access group at wgbh access.wgbh.org

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good evening, i'm ann notarangelo. and we begin with developing newsin the east bay. police have spent more than 24 hours searching a pittsburg neighborhood