In the decade since 9/11, immigration policy has been viewed principally through the lens of national security, a development that has given rise to major new border security and law enforcement initiatives, heightened visa controls and screening of international travelers and would-be immigrants, the collection and storage of information in vast new interoperable databases used by law enforcement and intelligence agencies, and the use of state and local law enforcement as force multipliers in immigration enforcement. Moreover, any prospects of bipartisan support for comprehensive immigration reform, which had been gaining momentum in Congress prior to the attacks, have been dashed.