All intending immigrants (maybe even any non-U.S. citizen planning to spend more than 90 days in the United States) should be screened using all reasaonably available biometrics databases, including those held by US-VISIT, DOD, DOJ, Interpol and others.

According to Homeland Security Presidential Directive 24, "Biometrics" refers to the measurable biological (anatomical and physiological) and behavioral characteristics that can be used for automated recognition; examples include fingerprint, face, and iris recognition.

This would help to protect us against terrorists, criminals and impostors.  Many people use false names to travel and this would provide one more layer of defense.