The prospect that thousands of drones could be patrolling U.S. skies by the end of this decade is raising the specter of a Big Brother government that peers into backyards and bedrooms.
The worries began mostly on the political margins, but there are signs that ordinary people are starting to fret that unmanned aircraft could soon be circling overhead.
Jeff Landry, a freshman Republican congressman from Louisiana's coastal bayou country, said constituents have stopped him while shopping at Walmart to talk about it.
"There is a distrust amongst the people who have come and discussed this issue with me about our government," Landry said. "It's raising an alarm with the American public."
Another GOP freshman, Rep. Austin Scott, said he first learned of the issue when someone shouted out a question about drones at a Republican Party meeting in his Georgia congressional district two months ago.
An American Civil Liberties Union lobbyist, Chris Calabrese, said that when he speaks to audiences about privacy issues generally, drones are what "everybody just perks up over."
"People are interested in the technology, they are interested in the implications and they worry about being under surveillance from the skies," he said.