From a friend on FB, This feels important to share:
"If you're going to DC, Boston, Los Angeles, SF, etc. to take part in a peaceful gathering, here are some good tips. Keep your cool. Do not offer personal information to unsolicited requests.
Stay to the edges of the crowd. Have a meet-up-if-you-get-separated plan. Do not count on your cellphones for this purpose. Write important information on your forearm in Sharpie. (Emergency contact, drug allergies, etc.) It will wash off eventually.
In fact, bring a Sharpie with you to share with others for this purpose.
Stay hydrated (water and