Tracking the entry and exit of foreign travelers legally visiting the U.S. seems simple enough. In reality, it has proven an insurmountable challenge. The best tracking occurs at air and sea ports of ...

Uncertainty over new policies for tracking foreign students has raised concern in the international community since September 11. The results of President Bush’s move to revamp a computer network used ...

Your Sept. 25 editorial states: “We are a nation of immigrants.” We are also a nation of laws. Our immigration policy is ineffective and encourages lawbreakers by ...

Anonymity was granted to sources included in this story due to fears of retaliation. Some interviews were conducted in a language other than English and have been represented in translation. In the ...