A little before 3PM Eastern time today, a small, single-engine aircraft struck a high-rise apartment building on Manhattan's Upper East Side.
While initial reports were troubling, confusing, and wrong (thanks, Chap, for teaching me that "initial reports are always believed and almost always wrong") it seems from all evidence as of about 5PM today that this was just a terrible aviation accident, not an act of terrorism.
New York City's response was incredibly fast. This was miles uptown from us, but we had extra cops on the street in the West Village in a very few minutes, and around the accident site itself, police officers, paramedics and firemen were in place within a few minutes.
I'm glad that our city's first responders are so well prepared.