FTA....
...But some of the smartest ideas are decidedly old-school and low-tech. Clothing is the first choice, because hats, glasses, masks and scarves go a long way toward scrambling drone-based facial-recognition software....and, umbrellas....
Must be why AntiFa thugs use the above.
It almost seems that the article was written to help the protesters avoid being recognized.
ANT&FA thugs use unbrellas so that they can get the drop on the coppers when they decide to start using guns (same purpose as the fireworks).