Traffic getting to the terminals has been pretty bad past few days. GW Parkway was backed up in both directions. The majority of the mess was caused by folks getting to "A", but B/C wasn't a heck of a lot better.
If metro is an option, consider that way.
As to security, the GF made it through Precheck at the North pier in about 10 minutes (last Sunday). I'm sure things will only be at this level or worse as we approach Christmas Day.