CSX's proposed acquisition of Pan Am Railways "represents a significant threat" to current and future intercity passenger-rail service, according to Amtrak Chief Executive Officer Bill Flynn. "Unfortunately, we believe the proposed merger, in its proposed form, will negatively impact current passenger train service and future routes in Massachusetts and northern New England that are identified in the Amtrak Corridor Vision," Flynn said in a prepared statement. That vision, which calls for Amtrak to provide new rail service to more than 160 more communities and 20 million more passengers annually by 2035, aligns with President Joe Biden's infrastructure investment blueprint.