i want to bring in our senior international correspondent nick robertson who is in hamburg, germany. no warnings out yet, just discussions because as we heard with our producer with the state department, there has been chatter about some sort of activity. what kind of chatter? >> reporter: well, right now fredricka i'm standing outside of the mosque in hamburg that was attended by a man that was captured in kabul this summer and is in u.s. custody. he's a german. but while he's been in custody, he's been talking about the possibility of a mumbai style plot to attack various cities and countries in europe. britain, france, and germany. he's the one that's been therefore getting this sort of threat possibility of an imminent threat in europe, and while i've been here i've been talking to sources here and they tell us that there is no imminent threat that they see. but despite the fact that this map is a german who is in u.s. custody and they understand he's providing new information to u.s. officials every day. that's what they tell us, new in fact -- new information every day. they al

our senior international correspondent, nick robertson, is following what's going on. ning us from hamburg, germany, to help us connect the dots. nick, you're just down the street from the source of one of the intelligence reports behind this threat at a mosque we've reported on before. what are you learning? >> well, this is the mosque of mohammed atah. it's the same place that the group that went to pakistan to terror training camps and the individuals in u.s. custody providing this information about the possibility of these mumbai-style attacks across europe, this is where they came from. sudeaky himself was a friend of atah's. sources here tell us that the government was aware that this mosque was a hotbed of extremism, that they'd been monitoring the extremists there. even thoeir sources allege that the imam there was allowing radicalization. despite all of that, despite the close attention, this group still managed to put together a plan and take off for those terror training camps, wolf. >> nic, if the intelligence is coming from germany where you are, why is the