On this date in 1973, a bomb was detonated at the IT&T building in New York. The device was placed in the company’s Latin American section. It caused extensive damage to several offices, but no one was killed or injured. Another bomb was detonated that day at IT&T’s Rome headquarters. The Weather Undergound took responsibility for the bombings, which they claimed were in retaliation for the company’s role in the coup that took place in Chile earlier that month.
Wikipedia – List of Weatherman actions