WASHINGTON - Federal air marshals are expanding their work beyond airplanes, launching counterterror surveillance at train stations and other mass transit facilities in a three-day test program.

Tempe police say 40 people have been arrested in a heroin sting, including 15 suspected dealers from 10 different trafficking organizations.

A gun battle erupted during an undercover drug operation involving marijuana at a south Phoenix home Wednesday night, killing one Chandler police officer and wounding two others.

Authorities say two men have been shot by federal agents after they apparently tried to run over the officers, and three other suspects are in custody.

A man, believed to be driving drunk in a stolen car, was arrested in Chandler on Thursday after colliding with a vehicle occupied by two undercover police detectives and then fleeing, authorities said.

LOS ANGELES - Tyra Banks has gone undercover as a 350-pound woman. Banks wore the fat suit to experience what it's like to be obese. "It seemed like the last form of open discrimination that's OK, and I decided to put on a 350-pound suit myself and live that life for a day and see what happens," the 31-year-old former supermodel told AP Radio in a recent interview.

A fast-food chain CEO ditches his corner office for flipping burgers at one of his restaurants. It sounds like a plot for a reality TV show. It is.

Tempe police have arrested the owners and an employee of the House of Glass Smoke Shop on suspicion of buying stolen cigarettes and selling marijuana and other drugs to undercover officers.

Chandler police Detective Carlos Ledesma was sitting at a card table when the drug bust went sour. He did not even have time to stand before being cut down by four rifle shots to the chest, and he died a short time later.

Authorities have arrested a Mesa Unified School District security officer on an accusation that he sold Oxycodone to an undercover officer on school grounds. Reinaldo P. Alexis, 46, of Mesa, was booked into jail Friday on suspicion of selling drugs in a drug-free zone.

A gunbattle erupted during an undercover drug operation at a south Phoenix home Wednesday night, killing one Chandler police officer and wounding two others.

An undercover Mesa police officer was threatened by a nunchuck wielding suspected crack cocaine dealer Tuesday.

A pregnant woman was jailed Friday after police say she tried to elude them and then crashed into an undercover car.