So: a tractor-trailer truck hit an Amtrak train at a crossing, and Homeland Security is using that as an excuse to argue that passengers on trains should be required to list their names with a government registry first. Actual story headline on the Reno news site: Amtrak train wreck reveals security weakness.
And the "weakness" in the story is not "Oh, dear, trains cross roadways and might be hit by trucks"; it's "Oh, no, we don't know the name of every single passenger on the train at all times."
Actual quote from the story: "In the years following the Sept. 11, 2001, terrorist attacks, airline security became increasingly tight, but Amtrak remains unable to even identify who is on its trains at any given moment."
Because heaven forbid the government not know exactly who's in transit at any given moment.