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A decision to undertake this action was made in Berlin after news of the mass murders began to emerge in the Allied countries , and when the hastily buried corpses began to pose a serious health hazard in the early summer of 1942 . Meanwhile , other researchers are developing systems based on ' evolutionary computing ' to solve factory scheduling and optimization problems . But technology developed by a former Cambridge University researcher could help introduce old fashioned personal care into online shopping . " Since terrorists struck New York and Washington last year , America has moved into a security-conscious era of biometrics , gamma ray imaging systems , radiation detectors , isotope identifiers and ' bomb-bots ' - remote-control robots that can disable explosives . In the course of the preocessing a number of bottlenecks developed . After the war , Vrba studied chemistry in Bratislava and at the University of Prague , Rosin entered business in Prague , and Mordowicz became the manager of a factory in Bratislava , emigrating to Israel in 1966 . Today , software based on ant behavior is used for optimization applications such as factory scheduling , vehicle routing and telecommunications switching . Scientists at Carnegie Mellon University have developed a prototype of a speech translator that was road-tested by US Army chaplains in Croatia . " Wedding photographers could be put out of a job by a robot developed by scientists at Washington University in St Louis in the US . These results ( Leuchter , Rudolf ) allegedly prove that the materials under examination had not been in contact with cyanide , unlike the wall fragments of delousing buildings in which the revisionists discovered considerable amount of cyanide compounds .