Americans -- racing for a kind of high noon thousands of protesters. Taking to the streets in Oakland California and decrying corporate greed part of the movement that has spread from New York to LA... See More
Americans -- racing for a kind of high noon thousands of protesters. Taking to the streets in Oakland California and decrying corporate greed part of the movement that has spread from New York to LA Cincinnati to Philadelphia. But in Oakland demonstrators have vowed to shut down the nation's fifth largest port and military veterans are swelling their ranks. Inspired by this man Iraq War -- Scott -- his skull fractures and a clash with police. ABC's Neal Karlinsky spent the day on the streets in Oakland Neil. -- this is the heart of the movement right in the middle of downtown Oakland all day long hundreds of people have been streaming through here. Skipping work -- a short time all of them will Begin to -- just about a mile from here to the Port of Oakland which they are borrowing to shut down even as court officials. -- to keep open. Occupy you play Oakland is now threatening to occupy a large chunk of the city. -- business. And threatening a city wide work stoppage might wait isn't being gardening as many as yeah. Protesters locked arms in front of city thinks flagship downtown trying to keep people out. Parent has not let anyone coming in. Hundreds of teachers joined in today for the first time and skip school leaving too few substitutes to keep some classes. Running. Spark that ignited such widespread discontent -- this run in with police last week. Tear gas and heavy handed police attempt to clear protesters backfired horribly. Leaving Iraq War veteran Scott Olsen. -- -- and was struck hospitalized with a skull fracture. Olson -- schools is still unable to talk and communicate with short written notes. Today fellow veterans -- picked up the cause and outrage in Oakland. And as far as New York where the movement began when I saw what happened to Scott -- I knew it was time to hit the streets it was now -- this week. Between Oakland police and the city's mayor. After ordering officers to clear protesters last week the mayor now says she supports the movement and -- city workers -- other -- police. The day off to join in the work stoppage in an open letter from. The police union officers accused her of sending mixed messages. As your police officers we are confused. Is at the city's intention to have city employees on both sides of a skirmish line. -- And again -- just a very short time all of these people will be marching across town the Port of Oakland there's a lot of concern that there could be. Confrontation when they get there will be watching.
This transcript has been automatically generated and may not be 100% accurate.