the path. from ohio to new york this morning and airlines are playing catch up after 900 flights were canceled. another severe storm watch in effect today. let s get the very latest from meteorologist rob marciano live in olympic park in atlanta. rough night for us up here. reporter: it was. not just for new york city, it was a massive storm system, christine. yesterday morning at this time we said the atmosphere was primed to explode and mother nature certainly took the cue yesterday afternoon. take a look at the radar from yesterday, i mean this damaging line of storms stretched from hartford all the way back through the ohio valley in through northern texas. 1700 miles of damaging storms over 300 wind reports that caused damage and one report of a tornado up there in elmira, new york, we don t expect to see that sort of action today but some folks will. leftover storms from last night across the delmarva and mid-atlantic and today that s where the main threat will be f
his mother overcome with grief. fans asking if the game he loved contributed to his death. a hero throws a tackle in a walmart parking lot. the iraq war vet trying to stop a suspect with a knife who took a woman s purse. but up first, al qaeda unmasked. in just four hours, the world gets to see a massive stack of documents from osama bin laden s compound. for the last 12 months, the documents were analyzed by intelligence officials and this morning, at 9:00 a.m. eastern they ll be posted online. we re told the information includes digital, audio and video files, printed materials, recording devices and handwritten documents. nic robertson live in london this morning. nic, peter bergen previewed those bin laden documents. in them, osama bin laden says we need to extend and develop our operations in america and not keep it limited to only blowing up airplanes. it s terrifying. reporter: it s absolutely terrifying. one of those documents, he says, specifically to his sor
it. it s really unknown right now. reporter: this lemon shark will provide valuable data but when it comes to what they are looking for, it s, well, a lemon. he s after the great sharks. tigers, hammerheads, bulls. they travel greater distances. if his team lands one it will be tagged with a satellite transmitter. if the shark goes near the oil, they will know it. one shark they tagged transmitted every day for three months. but two days after the deep horizon explosion, the transmissions suddenly stopped. coincidence? perhaps. here is what the track looked like the days before it disappeared. the tag could have failed or it could have headed off somewhere else into deep water and just not come up in the last few months but that s very unlike the shark s character.
listen to this. scientists are studying whether sharks are able to avoid danger. here with that is cnn s john zarelia. a 6-foot sharp. we have a nice lemon, guys. reporter: the researchers work quickly, taking blood and tissue samples, measurements. university of miami researcher, neil hammershrag is studying the habits of sharks in florida waters. the oil spill has given his company a new more urgent dimension. there is the possibility the animals might be able to anticipate the oil or sense the oil and move away from it. it s really unknown right now. reporter: this lemon shark will provide valuable data. but when it comes to what hammerslag is looking for, it s, well, a lemon. he s after the great sharks, tigers, hammer heads, bulls. they travel greater distances. if his team lands one, it will be tagged with a satellite
habits of sharks in florida waters. the oil spill has given the work a new, more urgent dimension. there is the possibility that these animals might be able to anticipate the oil or sense the oil and actually move away from it. it s really unknown right now. reporter: this lemon shark will provide valuable data, but when it comes to what they re looking for, it s well, a lemon. he s after the great sharks tigers, hammerheads, bulls. they travel greater distances. if his team lands one, it will be tagged with a satellite transmitter. if the shark goes near or into the oil, he will know it. one shark the team tagged transmitted nearly every day for three months. but two days after the deep horizon explosion, the transmissions suddenly stopped. coincidence? perhaps. here s what the hammerhead s track looked like the days