He has two articles focusing specifically on that issue, and a third on a possible rioter’s weapon.
They’re very informative and practical. I learned and re-learned several important lessons while reading them. For example: “Tear gas will destroy your soft contacts…trust me. You will never want to put them back in again if you get exposed. If you need your lenses to see, carry a spare pair.” I don’t wear contact lenses, so I’d never considered this. If you, or your loved ones, use them, you should heed Greg’s advice. For those relying on spectacles (or eyeglasses that are endangered by being too close to the spectacle!), it might be worth considering keeping a spare set on hand. That includes reading glasses, if you need them.
All three articles are worthwhile and recommended reading, particularly for those living in or near areas where urban unrest may be expected if the election results are not to the liking of the angry classes. (Berkeley, CA; Portland, OR; I’m looking at you!)