Joe Hernandez

So wait times can be several hours at airports like Houston and New Orleans one day and then much shorter the next day.

So in addition to the headache of these long lines, travelers are also dealing with the kind of unpredictability of this whole situation.

Yeah, it has to do with the dispute in Congress over funding for the Department of Homeland Security.

That includes TSA, and it also includes Immigration and Customs Enforcement, or ICE.

There have been several proposals now to fund DHS with added restrictions on immigration enforcement that Democrats have been pushing for,

But lawmakers haven't been able to reach a deal yet.

And in the meantime, TSA agents are missing paychecks.

They're calling out from work.

And that's leading to these long lines.

Now, one of the ways the Trump administration has chosen to deal with that so far is by sending ICE agents to some airports.

White House border czar Tom Homan told CBS's Face the Nation on Sunday that those ICE agents will stay there as long as they're needed.

And some airports have had close to 40 percent of TSA agents call out last week.

Right.

So Trump signed a memo ordering Homeland Security to use department funds to pay TSA workers.

It's not exactly clear how that will work since it's not an appropriation from Congress.

But the administration says TSA staff could start getting paid as early as today.

Even if those paychecks do go out, there are still a few issues here.

One is that so far during the shutdown, close to 500 TSA officers have quit.

And then Congress still has to figure out how to fund DHS.

But lawmakers have just left on recess.