Over the past few days I've relayed several stories that amount to the familiar police force stop-and-frisk policy being extended from the sidewalk to the skies. The case of Gabriel Silverstein (originally told by AOPA) is here. Those of Larry Gaines and Clay Phillips are here. This photo, apparently of a real interdiction, is via AOPA.
Now pilots and others respond, plus another first-hand story, from another pilot who for no reason found his plane surrounded by police.
(Hat tip to Mark Sletten)