and violence only begets violence. from the underground, that radical left wing group, the weathermen promises more attacks on the establishment around the entire country starting next week. the medium for this message was a tape recording reputedly by the weatherman rebel leader, bernadine donor. sisters and brothers, we are not just attacking targets. we are bringing a pitiful, help giant to its knees. guard your children, guard your doors. at one minute before 1:00 this morning, the switchboard at the capitol 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 that weather is really aiming even higher. and at that point, their idea was fewer bombs, higher profile targets. weather underground bomb the
at least two people were killed and more than 30 injured. in lower manhattan, an explosion this afternoon left at least three dead. the explosion took 11 lives in a baggage claim area. terrorists felt they had to innovate either in the direction of higher profile targets or higher body counts. in birmingham, england, several bombs blew up in the center of the city tonight. at least 17 people are dead. at least 70 more are injured. the first bomb went off in a crowded pub near the birmingham city center. minutes later and less than a hundred yards away, a second bomb exploded in another pub. there have been 200 people inside. police said they were still searching for bodies in the rubble. terrorism only works when it shocks people. the mid-1970s, the i.r.a. attempts an entirely new tactic, to bring the conflict to the british mainland. the british homefront has itself become a battlefield in the raging guerilla war over northern ireland.
in the united states, terrorism takes the form of bombings. the fbi records more than a thousand terrorist bombings every year. it is just startling how widespread bombings, especially these types of protest bombings, were in the 1970s. they happened by the hundreds. the weather underground put bombs in the state department and in a military induction center in oakland, california. it was not, to me, a weapon that you use to kill people. it was something you use to disrupt things. somebody called them exploding press releases. both the washington and oakland bombs were set to protest against american involvement in indochina. the problem with lots of little bombs is the first bomb gets page one news. when you re up to the 30th bomb, it s on page six. a bomb exploded today at los angeles international airport. some groups said, only by being more ruthless can we achieve our goals.
jones have a gps capability and there is a way there for to preprogram a way point into the drone so that it lands, basically crashes at a certain point and becomes a kamikaze. cnn has learned that u.s. security officials are scrambling to keep up with this lightest threat of swarms of drones. a large open venue where there are a lot of people gathered. how vulnerable to swarming drones? a bunch of people in a wide open space, of course they re vulnerable. we already know that. we ve seen attacks, new york city and other places. and mostly in vehicles, right? now what we ve done is tried to protect ourselves on the ground. this is something new. reporter: high profile targets like the upcoming super bowl could potentially be threatened by swarms of drones. a key question tonight, how can security teams defend against them? one is you find the people and stop them before they do
being more ruthless can we achieve our goals. at least two people were killed and more than 30 injured. in lower manhattan, an explosion this afternoon left at least three dead. the explosion took 11 lives in a baggage claim area. terrorists felt they had to innovate either in the direction of higher profile targets or higher body counts. in birmingham, england, several bombs blew up in the center of the city tonight. at least 17 people are dead. at least 70 more are injured. the first bomb went off in a crowded pub near the birmingham city center. minutes later and less than a hundred yards away, a second bomb exploded in another pub. there have been 200 people inside. police said they were still searching for bodies in the rubble. terrorism only works when it shocks people. the mid-1970s, the i.r.a. attempts an entirely new tactic, to bring the conflict to the british mainland. the british homefront has itself become a battlefield in the raging guerilla war over