On one notorious occasion the government ordered a nationwide halt of all traffic between noon and 12:40 so that squads of police could search all trains, trucks, and cars then in transit. The official explanation, quoted by German newspapers, was that the police were hunting for weapons, foreign propaganda, and evidence of communist resistance. Cynical Berliners embraced a different theory then making the rounds: that what the police really hoped to find, and confiscate, were copies of Swiss and Austrian newspapers carrying allegations that Hitler himself might have Jewish ancestry.