A journalist travels to maximum security prisons in the Philippines, Greenland, and South Africa to explore different imprisonment systems. The document discusses four personal takeaways: 1) Social conformity within prison systems helps maintain stability and order; 2) Rehabilitation is critical to help offenders reintegrate into society and reduce recidivism; 3) Inmates should not be subjected to harsh conditions and people should focus on being content with what they have; 4) Some commit crimes to return to the only social group they feel accepted in due to lack of support outside of prison.