Clamping Down on Student-Visa FraudIntensified enforcement seeks to catch terrorists but worries educatorsBy MICHAEL ARNONE The Federal Bureau of Investigation's affidavit sets the scene: In a Miami hotel room this past March, Rafael Diaz and James B. Holderman chatted with a Russian mobster. On the table between them lay a bag with more than $400,000, the first major payoff after nine months of secret... Copyright © 2008 by The Chronicle of Higher Education Subscribe | About The Chronicle | Contact us | Terms of use | Privacy policy | Help |