Baltimore city could soon have a serious constitutional problem on its hands if the City Council declares martial law to combat crime in troubled neighborhoods, American Civil Liberties Union officials said. The proposal drafted by Council Vice President Bob Curran will officially be assigned to his committee Monday tonight. But legal experts said they doubt the city can impose a law to fight crime that was drafted to restore order because of a riot. According to the proposal, police will also be instructed to shut down businesses and limit the number of people gathered on sidewalks. But David Rocah of...