The Miami International Airport closed a concourse over the weekend in response to the shutdown. Photo: Brynn Anderson/AP/REX/Shutterstock

The security lines at Atlanta’s Hartsfield-Jackson Airport took more than an hour to get through on Monday morning. Some security checkpoints and ticket counters in Houston’s George Bush International Airport were shut down Sunday, and still haven’t reopened. Similar scenes have taken place in Miami and Washington, D.C.

As the partial government shutdown enters its fourth week, the nation’s airports and the furloughed federal workers who make them run are feeling the effects more than most. And many are responding by not coming to work. According to TSA spokesman Michael Bilello, 7.6 percent of TSA agents were out on Monday on unscheduled absences. That’s more than double the 3.2 percent who missed the same day last year.

“We don’t believe the current situation is sustainable. We’re advocating for other solutions to make sure that TSA agents get paid,” Christopher Bidwell, of the trade group Airports Council International-North America, told Bloomberg. As “essential” government employees, TSA agents are required to work during the shutdown, even though they won’t be paid until the government reopens.

TRAVEL ALERT: Security lines at @ATLairport stretched more than an hour long this morning amid the partial federal shutdown.



Wait times could reach as long as an hour and a half. https://t.co/9mV5WYLVYv pic.twitter.com/KRxrLiX8vx — AJC (@ajc) January 14, 2019

On Friday, TSA employees missed their first paycheck since the shutdown began and their low pay — it ranges from $24,000 to $35,000 a year — makes the situation even more precarious, the AP reports:

Airline-industry officials worry that they are particularly likely to stop showing up because their relatively low pay means they could quickly struggle to pay bills without money coming in.

The dire financial situation for many TSA workers is made clear by some of the supports popping up to keep them afloat. In Seattle, the airport connected struggling agents with credit unions and utilities that shared information about programs for short-term loans and late bill-payment assistance.

In Tampa, the airport opened a food pantry for the 600 unpaid workers who continue to show up to work. “These are people who really need the assistance. If they don’t have a paycheck, it really makes a difference. They may not have anything in savings,” airport spokeswoman Emily Nipps told Fox 13. “They may be worried about how to put food on the table.”

The shutdown’s damage extends far beyond security lines. The FAA’s aviation safety inspectors, who are not deemed essential, haven’t been working during the shutdown. Last Friday, the FAA moved to recall some of the furloughed workers in an effort to keep up the safety oversight it’s responsible for.

Like TSA agents, air traffic controllers, whose union is suing the federal government, are working without pay. At least a few can rely on their Canadian co-workers for lunch.

Huge thank you to our Union brothers and sisters at @CATCA5454 YYZ Tower for sending us pizza last night!! #NATCA #CATCA #unionstrong pic.twitter.com/S6erEK6FpG — NATCA EWR (@NATCAEWR) January 13, 2019

But as the shutdown drags on, airport workers are growing more desperate. Some are responding by blasting Ludacris over the PA at 5:45 a.m and one has taken to GoFundMe to raise money for bills. Outsiders, meanwhile, are calling for a strike as the shutdown drags on with no end in sight.