Stealth exposing Agent Smith

“Shelly was my sock puppet up until he died,” said Smith. “He had just enough willpower to turn his own brain into mush trying to resist me. He’s lucky I let him live as long as I—”
“Sir,” barked Harrison. He held up his hand. The soldiers were looking back and forth at each other. The staff sergeant snapped his fingers, then again, then once more. Taylor tapped his collar and Hayes rubbed his own between his fingers.
Polk pulled his duty cap back on his head and coughed. They all looked at him. He blinked. “What?”
“You’re keying,” said Harrison with a glance at Stealth. “She turned your mic on!”

Excerpt From Ex-Patriots, pg 556
Peter Clines
https://books.apple.com/us/book/ex-patriots/id585738393