heather ishimaru reveals the secrets of building 640. >> this warehouse across from crissy field sitsmpty and neglected but it has a secret history that is about to be told. in 1941 it housed the first class of the u.s. army's secret intelligence service language school training 60 people in anticipation of the war with japan. 58 of them were second generation, born here. >> the u.s. army knew that japan's war was coming, so collected the few second generation japanese that were bilingual. >> among those was 93-year-old tom sakamo who was 20 years old then. he had been drafted and found himself in desert anti-tank maneuvers when he was approached by the head of the school. >> they said s sakamoto, i would make you commissioned officer if you attend the secret school at presidio san francisco. that looked a hell of a lot better than being in the desert. >> the school was moved to minnesota after pearl harbor, while he graduated and went on to be macarthur's interpreter the family was ordered to a farm and sent to an arkansas internment camp. now it will be a learning center as imagined

heather ishimaru reports. >> reporter: by the time these pictures were taken in the 30s and 40s. they were already more than 150 years old. now digging into that history revealing the original adobe building and foundation laid down in 1776 by spanish colonists. >> christine wallace and pat taylor are key members of a teal of architects and engineers working to restore and renovated the club. it's been the heart of military and social life of the base for 235 years. the intent is to keep it that way. >> it will be the same. it will still be a social center and community from and also heritage center. >> a gallery will fill the empty space between the oldest and newest structures here. two-story special events building will stay with the commanding view of the main post and bay. but with a facelift from the 1972 look note the fireplace in the upstairs bar. a new one is already in place. >> the most delicate work will be on replacing bricks in the original building dating from 1810. first two structures were destroyed by fire and earthquake. >> we use infrared tomography to try to

more from abc 7's heather ishimaru. >> 24-year-old iraq war veteran scott olson was injured marching here in oakland last night. his roommate tells us he has a two inch skull fracture in the area of his left forehead and doctors at highland hospital are deciding if surgery is necessary. right now it is unclear if he was hit with a rubber bullet or tear gas or smoke canister. >> it is unfortunate that that happened. i wish that it didn't happen and our goal obviously is not to cause injury to any one but unfortunately this happened and we regret that this injure are happened. >> reporter: doctors told his roommate that he was conscious when arrived at the hospital but was unable to speak more than in yes and no answers. >> really sad. and it makes me angry that two tours in iraq without any to come here andd tomorrow be shot by the people that are supposed to be protecting us. >> he moved here for a systems administration job at a company called owswob. he spent most of the two weeks camping overnight and came to oakland in support of occupy oakland. >> he comes here and now he has a

in oakland heather ishimaru abc 7 news. >> merchants to the protest zone this whole business is getting old. the damage and disruption being caused by the occupy demonstrators is hurting their livelihood. nick smith has that part of the story. >> the fight is not with police here. there is a police confrontation with parts of the community shaking. >> they will start riots easy. >> make your message known. if you don't like the banks former credit union. >> he runs such a business. small bank focuses on loans to under developed communities like oakland. that did not spare him the rage of protestors. he came to work to find the store front window like this. demonstrations like the one last night send the wrong message to those considering opening a business in oakland. >> businesses are challenged these types of events. it costs them money and the people are fearful to come to work. >> several small businesses opened in part bays of long subsidies in the city. >> we are part of a new breed of business oakland that want to see a vibrant alive bustling city center. >> they were also vandal