The car she was in-an official ground-car-was not an alien intrusion into the grounds and would not be picked up as a matter of course.

A thought came again, and it was almost an alien intrusion: I wondered suddenly just what the "opposite" of Pug-Boos would be.

It was as though he wanted to protect the ship against any alien intrusion.

She was growing accustomed to the alien intrusion.

Calandria encouraged him to think of the visions as a talent he could master, and not as some alien intrusion.

The cells and subcellular machinery ignore our own nano-interrogation and destroy any alien intrusion.

Rondl realized she sought to distract him from his impotent concern about the alien intrusion.

This was a riddle as bewildering as that of the alien intrusion!

But "settlements" can be a loaded word to some people, especially on the Israeli right, because to them it suggests an alien intrusion.

And we will keep it, safe from alien intrusion.