If a holiday party for county health workers in San Bernardino, Calif., can become the site of a mass shooting with possible ties to terrorism, does it cause you to think about what to do if you are ever in a situation that suddenly turns so horribly bad?
For some people, that means arming themselves and contemplating an in-kind response. But the range of possibilities is far wider, from staying aware of nearest exits and hiding places to simply being prepared to run.
The real question is, how far have these incidents encroached into our everyday thinking about how we conduct our lives?
Send no more than 150 words with your home address and telephone number to email@example.com. Deadline is Wednesday.