[Divemaster]

Attention Americans in Nice: The United States government urges you to use social media to contact friends & family to let them know you are safe (or not).

Attention Australians in Nice: Your government has established a hotline for you to let your government know if you are safe (or not).

Who ya gonna call? Personally, if I were a sheeple there I'd be practicing my Aussie accent.

However, I say just lay low for the next 12-24 hours and then carry on with your scheduled plans. Plans that don't involve large crowds, that is.