11.   The security alert, involving five hundred people, cost ten thousand pounds.

12.   American embassies, schools and other facilities closed throughout the Middle East as security alerts warned expatriates to exercise extreme caution.

13.   Around town, the security alert ordered by Mayor Rudolph Giuliani and Police Commissioner Howard Safir manifested itself in small, all but imperceptible, ways.

14.   At once, security alerts were sounded around the country.

15.   A security alert was in place at The Ballpark in Arlington because of the visit by Vice President Dick Cheney.

16.   After the bombings Friday, the United States placed embassies around the world on a heightened security alert.

17.   Dan Mihalko, a postal inspector, said the memo distributed by the postal service was intended as a security alert.

18.   His daughters questioned the safety of his trip and the idea of joining a big crowd amid a nationwide security alert and the recent series of Palestinian attacks.

19.   In any case, the United Nations has put Burundi on its second-highest security alert, meaning that its staff cannot leave the capital.

20.   In this security alert, too, Israelis and Palestinians looked through their own prisms.