https://www.cbsnews.com/news/last-pandemic-science-military-60-minutes-2021-04-11/
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Dr. Hepburn showed us a few current projects, some sound like they're from an episode of "Star Trek." Consider a ship like the USS Theodore Roosevelt -- hobbled last year when 1,271 crew members tested positive for the coronavirus. What if everyone on board had their health monitored with this subdermal implant, now in late-stage testing. It's not some dreaded government microchip to track your every move, but a tissue-like gel engineered to continuously test your blood.

Dr. Matt Hepburn: It's a sensor.

Bill Whitaker: This tiny green thing in there?

Dr. Matt Hepburn: That tiny green thing in there, you put it underneath your skin and what that tells you is that there are chemical reactions going on inside the body and that signal means you are going to have symptoms tomorrow.

Bill Whitaker: Wow. There's an-- an actual transmitter in that--

Dr. Matt Hepburn: Yeah. It's like a "check engine" light.

Bill Whitaker: Check this sailor out before he infects other people?

Dr. Matt Hepburn: That's right.