NEW YORK - MAY 21: A man enters a New York City bus May 21, 2004 in New York City. Citing security concerns, New York City Transit has proposed a ban on unauthorized photography, filming and videotaping on city subways, buses and Staten Island Railway trains. A ban was imposed in the early 1930's on photographing on subways and buses and was in force until as late as 1994. (Photo by Spencer Platt/Getty Images)
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