(VIDEO AT LINK) OAKLAND, Calif. - A protest that shut down the Port of Oakland to show the broadening reach of the Occupy Wall Street movement ended in violence when police in riot gear arrested dozens of protesters overnight who broke into a vacant building, shattered downtown windows, sprayed graffiti and set blazes along the way. --snip-- Protesters also threw concrete chunks, metal pipes, lit roman candles and molotov cocktails, police said....