18 West 11th Street; the site of the Weatherman explosion. The New York Times recalls the blast:

Neither of the women had much on in the way of clothes as they ran out. One had apparently been taking a shower, and the other had been ironing. As the fire trucks pulled up, a neighbor let them in to clean up and gave them clothes. Then they left, coolly heading to the subway.

Before long, the details of the bomb-making emerged. “Shortly after that,” Mr. Lockwood recalled recently, “I started getting visits — one from the New York Fire Department and two from the F.B.I.” His friends at Princeton were nonchalant. The Federal Bureau of Investigation agents found him at his eating club. The second time they showed up, someone yelled, “Charlie, the F.B.I.’s here again.” read on