expressing anger. international politics and domestic politics seemed to be decided by violence. and violence only begets violence. from the underground, that radical left wing group, the weather men promises more attacks on the establishment around the entire country starting next week. the medium for this message was a tape recording reportedly by the fugitive weatherman leader bernadine dorn. sisters and brothers, we re not just attacking targets, we re being a pitiful helpless giants to its knees. guard your courages, guard your banks, guard your children, guard your doors. at one minute before 1:00 this morning, the switch board at the capital received a phone call. a man s voice said a bomb would go off in the building in half an hour. at 1:30 in the morning, it did. credit for the bombing was claimed by the weather underground. in 1971, it appears weather