Inside look at how U.S. uses app to monitor migrants

Congress is considering whether to expand programs that monitor migrants, including an app called Smartlink that's already monitored thousands deemed low risk. Tom Hanson got a rare inside look to see how it works.

Inside look at how U.S. uses app to monitor migrants
Congress is considering whether to expand programs that monitor migrants, including an app called Smartlink that's already monitored thousands deemed low risk. Tom Hanson got a rare inside look to see how it works.