First we had this (news helicopter films apparent missile launch 35 miles west of LA):
And then today there is this (another news helicopter films apparent fireball over NYC):
In both instances the "experts" say they're just airplane contrails. And maybe they're right.
But something seems a little fishy.... Especially the first one when for the first two days the authorities claimed they didn't know what it was but that it certainly didn't represent a threat.