"It's not rocket science."

Houston travelers facing long TSA lines during the shutdown can check wait times through airport websites, apps and tracking sites.

If you’re flying out of Houston this morning, airport security lines are moving, but there’s a new issue travelers may want to keep on their radar: the possibility of ICE agents taking on a larger role inside U.

TSA workers in Dallas have gone unpaid because of the partial government shutdown, but are still showing up to work. Some are even volunteering at the airports in Houston to help with the long TSA wait times there.

IAH posted three- to four-hour TSA waits again Wednesday morning.

As the partial federal government shutdown stretches into its 40th day, the Houston Police Officers’ Union is reaching out to TSA employees at Houston-area airports, highlighting career opportunities at the Houston Police Department.

“This fiscal year, TSA has been shutdown for 50% of the time, or 85 days. And, if still shutdown this Friday, we will have reached nearly $1 billion in missed paychecks.” WATCH: Acting Administrator McNeill’s opening testimony ⬇️⬇️⬇️ pic.twitter.com/7WHSFNwNCI

As long lines continued Wednesday morning at Bush airport, Houston travelers tried finding ways to make the wait easier and catch their flights.