If aliens were here to help us....we'd know about them already. The fact that they aren't exactly speaking to the population at large....is a pretty good sign that whatever their intentions are....help isn't one of them...
Well, since we're all in the dark anyways, I guess a case can be made that they actually have helped in the past by avoiding a nuclear accident.
- Roswell incident, at the time, the only AFB with nuclear capabilities nearby, coincidence?
- RAF Woodbridge incident, more nukes at those bases
- The minuteman missle test film which captured a ufo shooting beams at a missle.
Friendly information gathering to ensure we aren't blowing ourselves up? Foes?

