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In January 1956, members of an Amazonian tribe murdered five American missionaries.
Adriaan Vlok was in charge of the police in apartheid-era South Africa.
Witness hears from the first woman to bring a case of sexual harassment to trial in India.
On this day in 1991 a killer whale called Tilikum drowned one of its trainers.
One man's memories of a very public siege in a high security jail in the USA.
Tracking down Peru's public enemy number one, leader of the Maoist Shining Path rebels.
How a schoolboy challenged the practice of daily Bible reading in US schools - and won.
The dissident poet spent four years in Soviet prisons and labour camps.
How did a black American soldier end up living a privileged life in communist China?
How the Soviets hid hi-tech bugs deep inside the walls of the new US embassy in Moscow.