Federal crime seems to be going mainstream. Illegal cell phone jammers are selling like hotcakes:

Unsuspecting cellphone users may find themselves saying that more often now that cellphone jammers — illegal gizmos that interfere with signals and cut off reception — are selling like hotcakes on the streets of New York.

"I bought one online, and I love it," said one jammer owner fed up with the din of dumb conversations and rock-and-roll ringtones.

"I use it on the bus all the time. I always zap the idiots who discuss what they want from the Chinese restaurant so that everyone can hear them. Why is that necessary?"

He added, "I can't throw the phones out the window, so this is the next best thing."

Online jammer seller Victor McCormack said he's made "hundreds of sales" to New Yorkers.

"The interest has gone insane in the last few years. I get all sorts of people buying them, from priests to police officers."

I guess if everyone's doing it, it ought not to matter that according to the FCC, it's a federal crime:

The operation of transmitters designed to jam or block wireless communications is a violation of the Communications Act of 1934, as amended ("Act"). See 47 U.S.C. Sections 301, 302a, 333. The Act prohibits any person from willfully or maliciously interfering with the radio communications of any station licensed or authorized under the Act or operated by the U.S. government. 47 U.S.C. Section 333. The manufacture, importation, sale or offer for sale, including advertising, of devices designed to block or jam wireless transmissions is prohibited. 47 U.S.C. Section 302a(b). Parties in violation of these provisions may be subject to the penalties set out in 47 U.S.C. Sections 501-510. Fines for a first offense can range as high as $11,000 for each violation or imprisonment for up to one year, and the device used may also be seized and forfeited to the U.S. government.

"This is not a crime that they're going after," said Rob Bernstein, deputy editor at New York City-based Sync magazine.

He said jammers are here, and their use is multiplying.

"Right now, there's a growing curiosity about jammers in the United States and New York," Bernstein said. "There's no better way to shut up a loudmouth on the phone, so people definitely want them and are finding ways to get them."

One way is at a spy shop on Third Avenue, which sells medium-sized jammers out of a back room for $1,500. The sales clerk there said he had sold jammers to a 50-year-old man who bought one to use on the Long Island Rail Road, and to restaurateurs.

One local purchaser bought a portable jammer last year, and said he likes using it at Roosevelt Field mall on Long Island.

"One time I followed this guy around for 20 minutes," he said. "I kept zapping him and zapping him, until finally he threw the phone on the floor. I couldn't stop laughing. It was so cool."

Jammers were first developed to help government security forces avert eavesdropping and thwart phone-triggered bombings. But by the late 1990s they were being sold to the public.

There are suspicions that some hotel chains employ jammers to cut down on guests' cellphone use and boost in-room phone charges.

(Personally, I'm not interested in blocking other people's calls, but if you want to get in on the crime wave, you can get a cell phone jammer here.)

UPDATE: The outlet above also sells a portable jammer which looks like a cell phone.