Patients, coached by a therapist, recreate disturbing combat situations but have the power to change the outcome by, say, making enemy bombsexplode farther away.
Monday's account offered the first Algerian government narrative of the four-day standoff, from the moment of the attempted bus hijacking to the moment when the attackers began to prepare to explodebombs across the massive gas plant that sprawled over 5 square kilometers ( 2 square miles).
Mr. Lenz added that as unexploded bombs grow older, they are becoming ever more unstable, and increasingly likely to explode, as the elements deteriorate their chemical detonators.