Republican senator Susan M. Collins of Maine, listens to rem

UNITED STATES - MARCH 21: Republican senator Susan M. Collins of Maine, listens to remarks at the annual "Washington People" luncheon during the American Association of Port Authorities Spring Conference on March 21, 2006 in Washington, D.C. The Homeland Security Department has no system to reopen ports if they are all shut down after an attack and has moved too slowly to install inspection equipment in the U.S. and overseas, Collins said. The department should dedicate at least $400 million over five years to port security, she said. (Photo by Chris Greenberg/Bloomberg via Getty Images)