On a day the new Homeland Security Department wanted to trumpet streamlined and tightened border inspections for travelers entering the United States, the agency had to explain why undercover investigators had been able to cross into the country using counterfeit identification papers and bogus names. The department said it would study the findings of the investigation, by the General Accounting Office, which reported to a Senate panel that its agents had easily entered the United States with fake driver’s licenses, counterfeit birth certificates and other false documents. Full Story