NEWARK - Air travelers passing through Newark Liberty International Airport will soon feel a little more exposed.

Beginning today, the Transportation Security Administration will begin using a new high-tech body scanner at the airport's Terminal B. The machines create a computerized image of a person's body and give screeners the ability to check for weapons.

The controversial scanners debuted at Kennedy Airport last week. There currently are more than 300 of them in use at 65 airports around the country.

Supporters say the scanners enhance efficiency at security checkpoints by allowing passengers to avoid a more rigorous hand-on search. Some travelers criticized the move saying the machines are visually intrusive.