ms. walter for her opening testimony. >> chairman miller, ranking members and distinguished members of the subcommittee, thank you for the opportunity to highlight our work on preventing terrorist travel. we facilitate policy decisions from planning to implementation. we are the coordination point for interagency screening initiatives as well. as the 9/11 commission pointed out, targeting terrorist travel is one of the most powerful weapons we have to counter terrorist operations. it is imperative that we employ layers of security throughout the travel continuing to identify individuals that may pose a risk before they reach the united states. we recognize there is no one size fits all approach security. our includes close coordination with counter- terrorism, law enforcement and public security authorities, the private sector and our state and local partners. we screen against various databases to track known threats. we utilize intelligence base targeting and risk-based screening to better identify unknown threats. a risk-based approach is the foundation of the dhs model today and a more

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