at this hour, new calls for attacks against the u.s. homeland from al qaeda s most dangerous branch. in a letter and video, two leaders of al qaeda in the arabian peninsula known as aqap praised recent lone wolf style attacks and called for more of them. the letter claims to be from master bomb-maker ibrahim al asiri, a man that experts call the most dangerous terrorist operating against the united states right now. al asiri is believed to be working on a new generation of explosives. this is a very dangerous guy. cnn terrorism analyst paul cruickshank joins us right now. you ve been following this man for a long time. two major issues here, one, what he said, and, two, the fact that he feels confident enough to say it. that s absolutely right.
of the loved ones of the 239 passengers and crew members on board saying, why can t you tell us just by using that? they want to be 100% certain. they cannot get anything wrong. so they wanted to all be together, look at the part for themselves and then make that decision. and i m sure that s why we believe that this will come very quickly whether they can or cannot connect this to mh-370. then the further examinations, we believe some scientists have told us may take weeks, may take days, may even take months to tell us about more detail relating to these scientific experiments and forensics they re doing. but certainly whether it s connected to mh-370 should come soon. by the way, there are also two parallel investigations going on, i want to remind everyone. there s an air crash investigation going on under international law. and there s a judicial investigation right here in france. there is a manslaughter case led by the families of the four french nationals on board, a
history and he s speaking directly to the people he s trying to convince. plus, attack america now. that warning coming from al qaeda s most notorious bomb-maker, a guy some people think is the most dangerous terrorist on earth right now. does this show a dramatic shift in strategy? plus, the definitive answer on whether the plane debris belongs to flight 370. that could come any moment. investigators are analyzing that wreckage right now. we ll tell you what they found. [ female announcer ] take skincare to the next level with roc® multi correxion® 5 in 1. proven to hydrate dryness, illuminate dullness, lift sagging, diminish the look of dark spots,
training there in this area of mississippi. the camp had already been, we are told, on a heightened state of alert since the recent incident in chattanooga where marines died at the hands of a shooter there. many u.s. military installations at a higher state of alert. the good news is, right now, no reports of any military personnel injured, thank goodness. but the camp at a higher state of alert and the military and the local law enforcement looking for whoever may be behind these two incidents. yeah. and is this the same person behind these two incidents? the search is on right now, barbara, as you say. also want to ask you about more breaking news. word of an incident involving an iranian warship and a u.s. helicopter. what are you hearing, barbara? reporter: a very odd incident indeed. but a u.s. defense official has told us and confirmed details apparently it was two weeks ago. but apparently in the gulf of aden off of yemen, a place that
he s still alive. he s still operational and still a very big threat, perhaps the biggest threat to the united states because he s very skilled at making explosive devices which are very difficult for airport security scanners to detect. over the last several years, three times he s plotted to bring down u.s. aviation. he came pretty close in 2009 with that underwear bombing plot over detroit. he s now thought to be working on a new generation of devices, even more sophisticated devices, new shoe bomb devices, new underwear devices. so there s a lot of concern, there s concern because his group is growing stronger and stronger. and that means that he has more resources than ever before to attack the united states and he s now saying it s our number one priority. why put out this call now? doesn t it by putting out the call put him at risk? it certainly does. he s been exceptionally careful about his operational security. probably the number one target