Several years ago, the state of Texas had several border webcams that were live.
Apparently, they showed too much activity at times, as they were eventually turned off.
The ‘official’ reason was that they were just on as a short-term experiment.
This indicates some are still active. I don’t know how accurate it is.
snip
Wild-life cameras with motion detection and low light capability were modified to meet specific
needs and satisfy certain criteria. Operation Drawbridge is fully operational today with hundreds of
cameras located along the border..........
Operation Drawbridge and its partnership with the U.S. Border Patrol and the border Sheriffs have
made a strategic and sustained impact on Cartel drug and human smuggling. Since the inception
of the program, through the end of December 2016, Operation Drawbridge has been successful in
detecting more than 275,000 criminal exploitations of the Texas-Mexico Border, and has directly
resulted in the apprehension of more than 133,000 individuals. In addition, Operation Drawbridge has
been responsible for the seizure of more than 182 tons of marijuana.
https://www.dps.texas.gov/PublicInformation/operDrawbrdg.htm