"SWAT-ing" refers to a hoax in which an anonymous prankster falsely reports a violent crime at an unsuspecting person's home, prompting a police team to respond to the location believing a dangerous situation is at hand.
The illegal practice has in recent months targeted well-known conservative writers and commentators, including Erick Erickson, founder of the blog RedState.com -- who claims he was eating dinner with his family in May when a SWAT team surrounded his home following such a false 911 call.
The growing trend, which some say could one day prove deadly, had conservatives on edge at the annual RightOnline conference of right-wing bloggers and activists in Las Vegas this weekend.
"What they're clearly trying to do is dampen down free speech, but it goes beyond that -- it's putting people's physical safety in jeopardy," said Ali Akbar, who heads a group called the National Bloggers Club made up of conservative online writers.
Akbar told FoxNews.com that he believes he is a target after he claims his mother's home address in Texas was posted on various Internet sites to "incite someone crazy on the fringe left to do something absolutely awful to one of us for what we're talking about."
Akbar and others are urging troops of conservative bloggers to protect themselves by contacting their local law enforcement before they post about a "controversial" topic.