Amtrak upgrades: High-speed proposals could affect 8 states

Proposals by the Federal Railroad Administration to upgrade the high-speed rail corridor through the Northeast have raised concerns , and some enthusiasm, from residents in the eight states containing the route of Amtrak's Acela Express from Boston to Washington. After reviewing three major alternatives and a fourth option of doing nothing, the agency plans to release its recommendations later this year. The proposals attracting the most attention: