Maryland Gov. Martin O'Malley has proposed a new 2 percent sales tax on gasoline as part of a proposed transportation plan aimed at generating $3.4 billion for highway and transit projects over the next five years and supporting 8,800 jobs each year. O'Malley's initiative would raise an average of $800 million each year. The governor has proposed getting to this increase by reducing the state tax on gas by five cents, then imposing a 2 percent sales tax on th...