This is a video that shows the island compounds with the barbed wires, grids and more.
Credits:
Created with images by Photographing Travis - "Angel Island" • andyrusch - "Angel Island Immigration Station" • Marcin Wichary - "untitled image" • allanjder - "20101016 Angel Island_DSC3240_1_2_3.jpg" • simonallardice - "This dorm housed the 'European detainees'"