Ferguson, Michael Brown: 141123-DC-on-guard

A police officer keeps an eye out for movement along West Florissant Avenue in Ferguson on Tuesday, Nov. 25, 2014.   Smoke from a burning building can be seen rising to the right.Photo By David Carson, dcarson@post-dispatch.com

A police officer keeps an eye out for movement along West Florissant Avenue in Ferguson on Tuesday, Nov. 25, 2014. Smoke from a burning building can be seen rising to the right.

Photo By David Carson, dcarson@post-dispatch.com