Theres an urban legend with the black helicopter crowd. As it goes, somebody is camping back of beyond and federal agents respond to their fire tracked by satelite, fly out and interrogate them about their activities. In reality, thats alot of boyscouts or natural fires in their infancy for even the area 51 Saucers to investigate. People have been questioned yes: usually camping in known marijuana growing backcountry areas or near sensitive government installations. I once evicted a transient from our seasonal observation tower in Oregon. I wasn't off the 3 story stairwell but every bar in town was talking about a russian fishing fleet spy being caught.