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NBC/WSJ Poll: Terror fears reshape 2016 landscape

The recent terrorist attacks in Paris and San Bernardino, Calif., have vaulted terrorism and national security to become the American public's top concern.

A supporter for Republican presidential candidate Donald Trump listens during a campaign rally, Dec. 5, 2015, in Davenport, Iowa. (Photo by Charlie Neibergall/AP)
A supporter for Republican presidential candidate Donald Trump listens during a campaign rally, Dec. 5, 2015, in Davenport, Iowa.AP

Mark Murray