Mixed martial arts pioneer Tara LaRosa took down and restrained an angry protester, who bit her on the chest, at a flag waiving gathering in North Portland on Sunday.LaRosa was part of a group of demonstrators waiving flags in honor of Veterans Day on an Interstate 84 overpass. A woman that took umbrage with the group got into an argument with one of LaRosa's counterparts, which then escalated into a physical altercation, according to a report by The Oregonian and which the Twitter videos below show.As the incident escalated, LaRosa apparently took the confrontational woman to the ground and controlled her. In...