In an interview which first aired last night NYPD commissioner Ray Kelly stated that the department does, in fact, have that ability:
[i]n an extreme situation, we would have some means to take down a plane.
Unsurprisingly, the Commissioner didn’t provide any additional details on the capabilities but he was quite explicit that the department has the equipment and training to do it if they determined it was necessary. No word either on the details behind who authorizes such an action or in what types of scenarios they would be considered.
I do not think I’m alone in thinking that this announcement opens up more questions than it answers regarding aviation safety.
A hat tip to the folks at NYC Aviation for mentioning this one; they’ve got the video clip of the interview on their site, too.