What's most extraordinary about this story is that three reporters plus an editor participated in putting this together and no one knew about the building two blocks away on West 11 Street that blew up in 1970.

The privileged daughter of a prominent city doctor, and her boyfriend - a Harvard grad and Occupy Wall Street activist - have been busted for allegedly having a cache of weapons and a bombmaking explosive in their Greenwich Village apartment.

Morgan Gliedman - who is nine-months pregnant - and her baby daddy, Aaron Greene, 31, also had instructions on making bombs, including a stack of papers with a cover sheet titled, "The Terrorist Encyclopedia,'' sources told The Post yesterday.

In 1970:

The Greenwich Village townhouse explosion occurred on March 6, 1970, in the Greenwich Village neighborhood of Manhattan. It was caused by the premature detonation of a bomb that was being assembled by members of the American radical left group, the Weather Underground. The bomb was under construction in the basement of 18 West 11th Street when it accidentally exploded - the blast reduced the four-story townhouse to a burning rubble-strewn ruin. Three persons preparing the bomb were killed instantly, and two others were injured but escaped from the scene.