Homeland Security Dept. changes passport rules

Virtually all air travelers entering the United States beginning January 23 will need to show passports, even US citizens, the Homeland Security Department announced. Until now, US citizens, travelers from Canada and Bermuda and some travelers from Mexico who have special border-crossing cards for frequent visitors were allowed to show other proofs of identification, such as drivers' licenses or birth certificates. "The ability to misuse travel documents to enter this country opens the door for a terrorist to carry out an attack," Homeland Security Secretary Michael Chertoff said in a statemen Wednesday.