Air travel proceeds, but some cancel their visits

Even as airlines operated a normal schedule of flights into and out of Paris, travelers with plans to visit the French capital reconsidered after a series of terror attacks. Some quickly canceled, a worrisome sign for the travel and tourism industries.

Joe Nardozzi, 31, a New York investment banker, and his wife won't be taking the wedding anniversary trip they planned this month. "I have no interest in losing my life over a trip to Paris," he said.

High tensions could be seen at airports across Europe on Saturday.