contrail on the left and a confirmed jet trail on the right. similar, same color and everything. here is another one. we are told it is a video shot from such an angle it could appear as if the trail was vertical instead of horizontal. and how about you tell us what plane it was. must have taken off from los angeles international airport, right? you must have a record of that. we know exactly the time this camera shot this thing because it was live on cbs in los angeles. so take that time and match it with the jet and get back to us. so, now to jennifer at the pentagon. the pentagon had 24 hours to investigate this. why can they not say what it is? >>reporter: she wanted to make sure that it was not some sort of secret black operation that they didn't know about but in the presentation they provided a lot of conspiracy theories.