The Chicago Sun-Times deserves plaudits for compiling this list of previous terrorist bombings in American history. Among them, bombs built by the Weather Underground. The president’s associate and host of his political coming out party, Bill Ayers, led that group.

Jan. 29, 1975: The U.S. State Department building in Washington, D.C., is bombed by the radical left group Weather Underground. No one is killed.

March 1, 1971: The Senate wing of the U.S. Capitol Building in Washington, D.C., is bombed by the radical left group Weather Underground. No one is killed.

March 6, 1970: Three members of the Weather Underground accidentally blow themselves up in their townhouse in New York City’s Greenwich Village while making bombs.

The list also notes a terrorist group I’d forgotten about, the FALN.

Jan. 24, 1975: A bomb goes off at historic Fraunces Tavern in New York City, killing four people. It was one of 49 bombings attributed to the Puerto Rican nationalist group FALN between 1974 and 1977 in New York.

That group later turned up in association with another Democrat, Hillary Clinton. Her husband the president pardoned some FALN terrorists to curry favor with some New York voters while she was running for the Senate.

Is this why President Obama brought up the “why” when discussing the Boston bombing this morning?

h/t Marathon Pundit