In Maximum Security Prison?

Maximum security prison and a supermax prison are grades of high security level used by prison systems in various countries, which offer an enhanced level of security to prevent prisoners from escaping and from doing harm to other inmates or security guards.

What prison is the Unabomber in?

Photos: A look back at the Unabomber's arrest in Montana

ADX Florence is considered the most secure prison in the nation. More than 22% of the prisoners are men who have murdered fellow inmates at other federal institutions.

What happens in a maximum security prison?

Short for 'super-maximum security,' supermax prisons are designed to hold the world's most dangerous criminals under segregated conditions – which means prisoners spend large amounts of time in solitary confinement and have very little contact with others.