Return of the Flag People

My city has a quirky July 4 tradition: A couple of days before the Fourth, little American flags mysteriously appear up and down the sides of the city's main street (not the official Main Street, which is now a minor street in the old part of downtown, but rather the major north-south thoroughfare that runs through the entire city and along which are a lot of the major city facilities). It's unofficial, done entirely through private funding and with volunteers, but with unspoken permission from