However, secret transmission of information from the government to the CIA started in 1955.

They never say its place, even in the most secret transmissions.

Millions of secret transmissions passed through it.

They naturally assumed no one could figure out their secret transmissions, and they didn't post guards around their facility.

Finally, esotericism sometimes suggests the idea of a secret transmission of spiritual teachings, through initiation from master to disciple.

"And since the sub was operating more or less in our own waters on a test cruise, the Navy saw no great urgency for top secret transmissions."

Somebody makes a secret transmission, and a few minutes later we're intercepted by Heran warships.

My brother Bruce and I sought to decode secret transmissions by signing him up for high-school German.

And even if it hadn't been, his crewmates were unaware of his secret transmissions.