silicon.com reports that 'the US Department of Homeland Security has decided to trial RFID tags'
Welcome to the Land of the Free!, number 4c62c570-70c5-11d9-9669-0800200c9a66! You'll be reflecting at 2450 MHz, enjoy your stay!
The article goes on to explain that
The testing phase will continue until the spring of next year. The exact way RFID will be used with the travellers is not yet known.
. . . .
US Under Secretary for Border & Transportation Security, Asa Hutchinson, said in a statement: "Through the use of radio frequency technology, we see the potential to not only improve the security of our country, but also to make the most important infrastructure enhancements to the US land borders in more than 50 years."
What is your frequency, Kenneth?
And how soon will the "success" of this program lead to tagging government employees and contractors as a prelude to tagging all citizens?