Vanguard

- Season 4

(2010)

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Correspondent Mariana van Zeller travels to Uganda, where many question whether the growing influence of American religious groups has led to a movement to make homosexuality a crime punishable by death. As an anti-gay movement spreads across the continent, gay Africans and their families face an increasingly uncertain future of isolation, imprisonment or even execution.

One in three Native American women will be raped in her lifetime. Correspondent Mariana van Zeller travels to Rosebud Reservation in South Dakota, where sexual assault and violence against women has escalated to murder.

Vanguard investigates one of the world's biggest public health crises: the 2.6 billion people living without sanitary plumbing.

Correspondent Mariana van Zeller explores the dark side to the sport's global popularity, what has been called "the new slave trade."

In this episode of Vanguard, correspondent Kaj Larsen investigates the alarming rise in the number of soldiers who have been traumatized by war and are now accused of bringing the violence home. Of the more than 2 million men and women who have served in the recent wars in Iraq and Afghanistan, as many as a third of them may now have post-traumatic stress disorder, or PTSD. A growing number of these vets are being charged with violent crimes, and Kaj travels to prisons and mental health facilities in Arizona, Colorado and Oregon to hear their stories.

Correspondent Christof Putzel traces the journey of a small town kid from Alabama to Somalia, where as part of the militant group Al-Shabaab he is now recruiting young Muslims from the west to wage jihad overseas.

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Adam Yamaguchi embeds with U.S. agents are working to dismantle Mexican drug trafficking organizations producing marijuana on American soil.

Adam Yamaguchi follows an elite task force on a mission to take down marijuana growers from Mexico, including low-level planters and high-level financiers.