A government source says the specific terrorist threats that led to the cancellation of seven flights have passed. The official says there are no plans to ground any more flights.
Six international flights from Britain and France were canceled after the Homeland Security Department raised security concerns. A flight from Washington to Houston, the site of the Super Bowl, was also grounded.
A Homeland Security spokesman had cited "specific and credible intelligence information" suggesting that terrorists wanted to attack the flights. No word on the method of attack.
The government source says current intelligence doesn't indicate any more threats against specific flights.