U.S. Rep. John K. Delaney said Thursday that toll lanes might be needed to ease traffic and congestion on Interstate 270, a corridor vital to the future of Montgomery and Frederick counties. Leaders in the region must make sure the highway operates as efficiently as possible, Delaney (D-Dist. 6) of Potomac told legislators and business leaders from the two counties Thursday in Frederick at a meeting on the I-270 corridor. Del. Michael Hough (D) of Brunswick, an incoming state senator from District 4, said Virginia has done a good job of combining ideas such as high-occupancy toll lanes and private...