How Witness Protection Program Works - Is It Really Protection?

What is Witness Protection, can you get it and does it continue after the Gov gets what it wants from you. The pros and cons to getting it and how witnesses are hidden before they testify. When you ask the Gov for something they own you and will not give you anything for free unless they can get something they want. http://www.thinklikeahorse.org/All_About_Guns.html