..it all makes sense now.

Q. Can the president spy on me without a warrant?
A. The president would never, ever spy on you, unless you're talking to a terrorist.
Q. That sounds reasonable!
A. Or an associate of a terrorist or a suspected associate of a terrorist or a possible suspected relative of a member of an affiliate of a terrorist or someone with a name that's spelled like a terrorist's or someone who's been mistakenly identified as a terrorist by an NSA algorithm.