CNN The Lead With Jake Tapper December 2, 2015 21:42:00
Authorities now know. now listen to some of what the president said to cbs in that interview. >> well, we don't know that much yet. it's still an active situation. fbi is on the ground offering assistance to local officials as they need it. it does appear that there are going to be some casualtiecasua. and, you know, obviously our hearts go out to the victims and the families. the one thing we do know is that we have a pattern now of mass shootings in this country that has no parallel anywhere else in the world. and there are some steps we could take not to eliminate every one of these mass sh...