Sentence:  I asked the same questions inside the launch-control rooms of an Atlas missile base in Wyoming , where officers who wear sidearms are manning the `` commit buttons '' that could start a war - accidentally or by design - and in the command centers where other pistol-packing men could give orders to <WSD>push</WSD> such buttons . 
Meaning of the word marked with <WSD> tags:  move with force, "He pushed the table into a corner"