Senators Charles Schumer of New York and Richard Blumenthal of Connecticut held a news conference Sunday at Grand Central Terminal. The Democratic lawmakers are urging the Federal Railroad Administration to implement the cameras.
The National Transportation Safety Board has suggested it.
The railroad administration hasn't immediately responded to messages seeking comment on the idea. There's also no immediate comment from the Metropolitan Transportation Authority, which runs Metro-North.
A lawyer and union leader for the derailed train's engineer have said he briefly nodded or experienced a daze at the controls.
More than 60 people were injured.