Security heightened at airports for holiday

Travelers can expect to see a greater security presence at Hawaii airports during the Fourth of July holiday, "particularly around the curbsides," said Scott Ishikawa, state Department of Transportation spokesman.

And there will be more uniformed security officers and canine units in the terminals, said Nico Menendez, Transportation Security Administration spokesman.

Ishikawa said security officers started doing random checks of vehicles entering the parking garages at Honolulu Airport on Saturday. On the neighbor islands, the random vehicle checks are being done at the entrances to the airports, he said.

Ishikawa said the added security measures should add no more than five to 10 minutes to the time travelers need to be at the airports before their scheduled departure.

Homeland Security Secretary Michael Chertoff said the department will be implementing plans to increase security at U.S. airports, mass transit and other transportation facilities for the holiday period following this weekend's terrorist incidents in Great Britain.

On Friday, London police discovered two cars filled with explosives parked near Piccadilly Circus. And on Saturday, two men crashed a flaming SUV into the entrance to Glasgow Airport's main terminal in Scotland.