At least one arrested as protesters make their way to World Cup stadium . The protests have been peaceful so far but police are still on high alert in the city of more than 1 million people. Protesters hope to pressure government to provide low-income housing .
At least one arrested as protesters make their way to World Cup stadium . Critics angry at Brazil 's government for spending $ 11 billion on World Cup . Protesters hope to pressure government to provide low-income housing .