Covert Button News Today : Breaking News, Live Updates & Top Stories | Vimarsana

>> there was a covert button. just like you would see in a bank. thieves knew somehow that that had to be hit as evidenced by how much time they spent in the museum. >> they weren't at all concerned. >> clearly not concerned that the police were coming. so how they knew that the guard didn't hit that alarm is a mystery to me. >> reporter: but did did the thieves really know the alarms had not been set off? or could that be why they waited a while to start dismantling the art? remember, motion detectors didn't pick up the thieves' trail until 24 minutes after they entered the museum. >> apparen...

>> reporter: both the fbi and the museum security director are stuck on the fact that the thieves spent 81 minutes inside the museum. anthony amore says that is eight times as long as the typical art theft. >> there was a covert button like you would see in a bank and the thieves knew somehow that that hadn't been hit as evidenced by how much time they spent in the museum. >> reporter: they weren't at all concerned, 81 minutes, that the police were on their way? >> clearly not concerned the police were coming. so how they knew that the guard didn't hit that alarm was a mystery to me. >> report...

Times as long as the typical art theft. >> there was a covert button like you would see in a bank and the thieves knew somehow that that hadn't been hit as evidenced by how much time they spent in the museum. >> reporter: they weren't at all concerned, 81 minutes, that the police were on their way? >> clearly not concerned the police were coming. so how they knew that the guard didn't hit that alarm was a mystery to me. >> reporter: but did the thieves really know the alarms had not been set off? or could that be why they waited awhile to start dismantling the art? remember, motion detectors d...