PBS International

In the frigid valleys of Japan's Shiga Highlands, a troop of snow monkeys make their way and raise their families in a complex society of rank and privilege where each knows their place. Their leader is still new to the job and something of a solitary grouch. But one little monkey, innocently unaware of his own lowly social rank, reaches out to this lonely leader, forming a bond with him that manages over time to warm his less than sunny disposition. It is a rare and remarkable gesture that alters both their lives. Changing seasons bring new babies to care for, a profusion of insects and blossoms to eat, family disagreements to squabble over and tragedies to overcome. Mating season brings competition for females, as the days grow shorter and colder in a rush toward winter. But with their now confident leader to guide them and their families to shelter and care for them, this troop of snow monkeys is ready to face the world.

Can science help us understand these crimes?

Examine the history of bluegrass music, from its origins to its eventual worldwide popularity, and hear from dozens of musicians who explain the ways bluegrass music transcends generational, cultural and geographic boundaries.

This documentary tells of the extraordinary rise of Jair Bolsonaro, from relative obscurity to the ultimate seat of South American power. Told through intimate interviews with some of those closest to him including his eldest son Flávio, former government ministers, as well as his opponents, explore Bolsonaro’s brilliant yet ruthless journey to the presidency, with high-stakes drama, guns and God.

A storm of Modernism swept through the art worlds of the West in the early decades of the twentieth century, uprooting centuries of tradition. The epicenter of this storm was Paris, France. For an incandescent moment from 1905 to 1930, Paris was the magnetic center for radical innovation and experiment, and the Mecca for creative talents who would change the course of art throughout the Western world.

They're called bar women, hostesses, or sex workers and "western princesses." They come from poor families, struggling to earn a decent wage, only to be forced into the world's oldest profession. They're the women who work in the camptowns that surround U.S. military bases in South Korea. In 40 years, over a million women have worked in Korea's military sex industry, but their existence has never been officially acknowledged by either government. In The Women Outside, a film by J.T. Orinne Takagi and Hye Jung Park, some of these women bravely speak out about their lives for the first time. The film raises provocative questions about military policy, economic survival, and the role of women in global geopolitics

The assassination of Kim Jong-nam occurred on 13 February 2017 when two women attacked him with VX nerve agent, a lethal chemical weapon, at Kuala Lumpur International Airport in Malaysia. Kim was the eldest son of deceased North Korean leader Kim Jong-il and the half-brother of current North Korean leader Kim Jong-un. North Korean diplomats objected to any form of autopsy being conducted on Kim's body, but the autopsy proceeded as the they did not submit a formal protest. Following Malaysia's refusal to release the body immediately, North Korea's ambassador Kang Chol accused Malaysia of collaborating with the country's enemies over the assassination of Kim Jong-nam.

In the summer of 1989, Poland astonished the world by starting the revolution which has swept Eastern Europe. Solidarity, the once-banned independent trade union, took power in a coalition government ending 45 years of Communist repression. In this report, Frontline examines a society attempting something which has never been done-changing overnight from Communism to capitalism.