The nation’s largest railroad union endorsed Union Pacific’s proposed $85 billion acquisition of Norfolk Southern Monday after securing promises to protect jobs.

The head of the nation’s largest railroad union says recommendations designed to help resolve stalled contract talks with freight railroads may not satisfy workers.

FILE - In this Jan. 1, 2021 file photo, The Amtrak Metropolitan Lounge overlooks the newly-completed Moynihan Train Hall in New York. Two major railroad workers unions have asked the Department of Homeland Security to beef up security on Amtrak and other passenger rail lines, including by creating a no-ride list akin to the no-fly list that prevents people identified as risks from boarding planes. – Two major railroad workers unions have asked the Department of Homeland Security to beef up security on Amtrak and other passenger lines, including by creating a no-ride list akin to the no-fly list that prevents people identified as risks from boarding planes. Ferguson, of SMART-TD, acknowledged there would be a cost to creating a no-ride list, but he said it should be minimal considering that officials would simply be sharing the existing no-fly list with railroads. The unions also asked the Federal Railroad Administration to require more security, but that agency declined to intervene Thursday because the Department of Homeland Security has jurisdiction over such matters.