Nope, it wasn't in the past few days.  It was 17 years ago.  The reason?  Wayne LaPierre, then-executive vice president, and today CEO, of the National Rife Association. (h/t Being Liberal)

The letter was originally published on May 3, 1995 in The New York Times.  It came relatively quickly after the Oklahoma City Bombing.

I was outraged when, even in the wake of the Oklahoma City tragedy, Mr. Wayne LaPierre, executive vice president of N.R.A., defended his attack on federal agents as “jack-booted thugs.” To attack Secret Service agents or A.T.F. people or any government law enforcement people as “wearing Nazi bucket helmets and black storm trooper uniforms” wanting to “attack law abiding citizens” is a vicious slander on good people.