The U.S. House of Representatives on Friday approved a $99 million grant program that will help private bus operators improve security. The legislation, H.R. 3429, is applicable to a variety of security enhancements including protecting drivers, implementing passenger screening programs, constructing or modifying existing terminals, training employees in threat assessment and installing video surveillance and communications equipment. "During the past 80 years, 50 percent of international terrorist attacks have occurred on buses or in bus stations," said House Transportation Committee Chairman Don Young, R-Alaska, who introduced the bill in the House. The Senate is also considering the legislation, which is sponsored by Sen. Max Cleland, D-Ga.