This was on the top front page of the Washington Post (print edition) Metro section this morning - the headline spanning from edge to edge of the page:  

Over a career that has taken him to Afghanistan and Iraq, Col. Patrick Duggan has seen the lethal power of drones. Now, as a base commander in the nation’s capital, he is worried that frequent illegal flights buzzing over Washington could pose a threat.


...


https://www.washingtonpost.com/l ... _term=.d61753b4e217

Sure these are mostly tourists wanting to get shots of our monuments and Washington sights, but they can't be distinguished from the bad ones maybe intended to do some kind of harm.  The world we live in today.  Everyone and everything has to be considered suspect.