David Schaper

Updated at 11:59 p.m. ET

Federal investigators say a track switch locked in the wrong position appears to have led to Sunday's deadly Amtrak collision with an idle CSX freight train, and they are hesitant to say this latest wreck — the fourth fatal Amtrak incident in seven weeks — is part of a broader problem with what some have called a "lax safety culture" at Amtrak.

We all need a little emotional support or comforting every now and then. And for many of us, our animals can provide it. Some of us with severe anxiety, phobias, PTSD or other disabilities cannot travel without them.

But one woman took the notion of needing a comfort animal a little too far when trying to bring her rather large peacock, Dexter, onboard a United Airlines flight at Newark's Liberty Airport Sunday. United said no.

How much would you pay to avoid traffic jams on your daily commute? $10? $20? How about $40?

That's how much a tollway in the Virginia suburbs of Washington, D.C., charged for a short time last week. Outraged commuters call it highway robbery.

But transportation officials say the high-priced toll is less about money and more about changing commuter behavior and reducing congestion, and commuters all across the country might soon see more tolls in the future.

There is no need to charter a sleigh pulled by reindeer for your air travel to holiday destinations after all. American Airlines and its pilots have worked out a deal to staff cockpits in late December after a scheduling snafu threatened to cancel thousands of flights.

Because of what the airline is calling "a processing error" in its scheduling system, American mistakenly allowed many more pilots to take time off over the holidays than it should have.

Updated on Dec. 4 at 6:29 p.m. ET

Some of the nation's 3.5 million truck drivers staged protests with their big rigs at truck stops and a few state capitols around the country on Monday, in hopes of derailing a new safety regulation that is set to take effect later this month.