Washington, Dec 26: Homeland Security officials have enhanced their ability to monitor the air for biological warfare agents in 30 cities, one of several ways the government is preparing for possible terrorist strikes during the current high alert status. The alert also has activated special disaster response teams, while federal officials have been conferring with foreign governments to prevent terrorists from boarding international flights bound for the United States. "People have their antennas up," said Brian Roehrkasse, a spokesman for the Homeland Security Department. President George W. Bush kept abreast of terrorism threats from the Camp David presidential retreat in Maryland as he celebrated Christmas day with his family yesterday. The department previously modified air pollution monitoring equipment in the 30 cities to pick up any harmful biological agents and provide Test results in 12 to 24 hours.
After the national threat alert was raised to the second-highest level, "code orange," on Sunday, officials took several dozen additional monitors and installed them in the same cities. The locations were not identified for security reasons. Discussions between U.S. and French officials led to the cancellation of six Air France flights between Paris and Los Angeles on Wednesday and Thursday. US officials also were talking to counterparts in other countries. After the cancellations, French investigators questioned seven men pointed out by US intelligence but found no evidence they planned to use a Los Angeles-bound jet to launch terror attacks against the United States, French authorities said yesterday. Bureau Report