By Donna Hogan, The Tribune, Mesa, Ariz. May 16--The next time you fly from Phoenix Sky Harbor International Airport, your carry-on bags will get a lot more scrutiny. The Transportation Security Administration is installing new cutting-edge X-ray machines at the airport's security checkpoints.

By Art Marroquin Federal authorities at Los Angeles International Airport are installing a new set of X-ray machines that will allow security screeners to get a better look at what's inside carry-on luggage.

By Art Marroquin Travelers passing through Los Angeles International Airport may be left feeling a little more exposed beginning today.

By John Przybys By JOHN PRZYBYS REVIEW-JOURNAL Mike Zimmerman slips off his shoes, stows his pack in a plastic bin and makes his way - a bit more slowly than he and, probably, those behind him would prefer - through the security checkpoint at McCarran International Airport's D gates.

By DALE QUINN; ANDREA KELLY West concourse evacuated; federal probe is launched A loaded handgun found in a men's restroom past the security checkpoint at Tucson International Airport forced the evacuation of the west concourse Thursday morning and launched a federal investigation, officials said.