Department of State advises Americans worldwide to exercise increased caution

https://travel.state.gov/en/international-travel/travel-advisories/global-events/worldwide-caution.html

Worldwide Caution

U.S. Department of State guidance for a worldwide caution.

The U.S. government shutdown has halted pay to the TSA, but not ICE, so ICE is taking over from the TSA in airports[1]. If you fly to the U.S., starting Monday apparently, the first think you're likely to see is masked gunmen giving you the eye.

No thankyou.

[1]https://www.bbc.com/news/articles/cede0qyvqz3o

Trump says ICE agents will assist TSA agents with airport security as DHS shutdown continues

Travellers have faced hours-long waits at airports around the country as a partial government shutdown has left TSA agents without pay.

Would anyone argue that the TSA, Theatre Security Agency, shouldn’t be defunded?
This isn’t that.
There's an argument for that, though I think replacing it with Trump's basically-unregulated private military is pretty concerning.

Replacing it with nothing in an orderly fashion? Probably a good move.

Replacing them with ICE as a political gesture? Not so much

The TSA is responsible for more than just airports. As someone with family who works (worked) on port security in the maritime division, I would argue that Chesterton's Fence [0] applies here just as much as anywhere else.

[0] https://en.wikipedia.org/wiki/G._K._Chesterton#Chesterton's_...

G. K. Chesterton - Wikipedia