it all is the idea that whites in this country are going to lose their majority. today they are about 62%. in the next 25 years they'll be simply one more minority in a genuinely multi cultural country. so you would hear things like i live in a country i don't feel is my own anymore. >> increasingly, over the last 30 years, radicalized groups came to believe the government was trying to limit second amendment rights through gun control. tensions boiled over in 1992 when federal authorities came to arrest a white supremacist named randy weaver on a mountain top in ruby ridge, idaho. >> weaver had illegally sold a sawed off shotgun. kind of a minor weapons charge but it escalated into a huge confrontation in which his cabin was surrounded by federal forces. >> after an 11-day siege one federal agent and weaver's 14-year-old son were killed in a shoot out. weaver's unarmed wife was shot and killed by an fbi sniper.