Washington -- Security at U.S. airports and other mass-transportation facilities has been tightened in the wake of last week's thwarted terrorist attacks in the United Kingdom.
"In an abundance of caution during the holiday period, (Department of Homeland Security) will be implementing plans to increase our security measures," the department's secretary, Michael Chertoff, said Saturday in reference to the Independence Day holiday.
Chertoff did not detail the extra security measures, but he advised airline passengers to "arrive at the airport with sufficient time for security clearance."
Chertoff said there is "no specific, credible information" that the U.K. attacks are connected with any threat against the United States. The department's aviation threat level remains orange, as it has been since last fall, according to Chertoff.
On Saturday, two men drove a Jeep Cherokee through the glass-door entrance of the main terminal at Glasgow Airport. The vehicle burst into flames, but nobody was injured except the driver, who was taken to a local hospital with serious burns.
The day before, two cars with unexploded bombs were discovered in London. Police linked the London and Glasgow incidents, and seven people tied to the attacks were arrested as of today.
The Glasgow Airport is open and operating as usual, according to airport authorities. Only nine of some 300 daily flights at the airport were cancelled today, they said.
For more news on recent developments that could affect your plans,
get MeetingNews' weekly e-newsletter to your inbox.