Preventing Radicalism by Exploring and Vetting its Emergence as a National Threat (PREVENT) Act - Establishes in the legislative branch the National Commission on Radicalization and Terrorism to: (1) examine and report upon facts and causes relating to radicalization in the United States; (2) build upon the work of and work together with related advisory bodies, and review the findings of related studies and academic works; and (3) report to the President and Congress on recommendations for countermeasures to radicalization, and measures to prevent radicalization from developing and spreading, within the United States.

Directs the Secretary of Homeland Security to work with the Center for Risk and Economic Analysis of Terrorism Events (CREATE), led by the University of Southern California, to evaluate the feasibility and practicality of creating further incentives for private sector critical infrastructure stakeholders to participate in the sharing of protected critical infrastructure information.