[2banana]

Because aliens would never expect humans to improve their radar systems after 40 years...

[dp0622]

I sure hope some foreign country hasn’t made leaps and bounds ahead of us in aeronautics.

I better get in my F/A-18 in the backyard and take a poke at what’s going on up there.

[RoosterRedux]

First, we don't know if it's aliens. Second, if it is aliens, what if they just don't care about our radar.

Three, whatever is happening is happening in our restricted training air space and in areas critical to our national security.

[nikos1121]

What if you had a drone with nuclear propulsion that was was pilot less, and flown remotely.

This would explain everything.

Clearly, a highly classified project.

[Magnum44]

Sooner or later we were going to come up with the means to see through their disguise...