The Department of Homeland Security and the FBI are concerned about the potential for copycat attacks from the New Orleans terror attack, as well as homegrown extremists.

Scores range from 1 to 100, with higher numbers indicating a greater degree of safety. Fodor's also offers tips for women traveling abroad, such as packing portable door locks and personal alarms.

What’s on TV: Fern Britton: Inside the Vets, Formula 1, and more Your complete TV guide to the week’s best shows, across terrestrial and digital platforms ...