Nearly seven years after the Taliban were toppled, Al Qaeda and the Taliban continue to use Pakistan as a de facto base, virtually unchallenged and far out of America’s reach.

Soon after 9/11, an FBI informant made an alarming claim: Osama bin Laden's deputy, Ayman al-Zawahiri, had visited the town of Lodi, Calif. in the late 1990s and attended a mosque there. Moreover, two Pakistani imams preaching at the mosque came from a conservative Islamic school, or madrassa, linked to the former Taliban regime in Afghanistan. According to McGregor Scott, the U.S. attorney who led the federal anti-terror investigation, this was "an attempt by a group of radical Islamic religious figures to come to this country and … establish a madrassa to serve as a recruiting ground." However, a deeper look at the evidence creates uncertainty about what kind of threat actually did exist in Lodi and provides a case study of America's response to the threat of domestic terrorism. In "The Enemy Within, " FRONTLINE and New York Times reporter Lowell Bergman examines the Lodi case and interviews FBI and Homeland Security officials to assess U.S. anti-terror efforts.

Today, as America looks for an exit strategy, FRONTLINE examines the initial, critical decisions of the U.S.-led regime in Baghdad in The Lost Year in Iraq. From the same team that produced Rumsfeld's War, The Torture Question and The Dark Side, the film is based on more than 30 interviews, most of them with the officials charged with building a new and democratic Iraq.

In May 2005, Jim West, the once-popular mayor of Spokane, Wash., made headlines with rampant accusations of abuse. FRONTLINE takes a look at West’s two lives: the public and the private, the political and the deeply, disturbingly possible.

Day after day scores of bodies litter the streets of Baghdad. To staunch the violence, the U.S. has spent billions to "stand up" the Iraqi forces. In Gangs of Iraq, a joint production of FRONTLINE and the "America at a Crossroads" series, FRONTLINE takes a hard look at how the four-year training effort has fared and how the coalition-trained forces have themselves been infiltrated by various sectarian militias. Now, with President Bush sending new U.S. troops to Iraq, it remains to be seen if America and its allies can build a national Iraqi army and police and restore order.

The Church of Jesus Christ of Latter-day Saints is one of America's fastest growing religions, and its influence circles the globe. The church has 12 million members today and over half of them live outside the United States. Yet the birth of Mormonism and its history is one of America's great neglected narratives. This four-hour documentary brings together FRONTLINE and AMERICAN EXPERIENCE in their first co-production to provide a searching portrait of this fascinating but often misunderstood religion. Produced by award-winning filmmaker Helen Whitney ("Faith and Doubt at Ground Zero," "John Paul II: The Millennial Pope"), the film will explore the richness, the complexities, and the controversies of the Mormons' story as told through interviews with leaders and members of the church, with leading writers and historians, and with supporters and critics of the Mormon faith.

The Church of Jesus Christ of Latter-day Saints is one of America's fastest growing religions, and its influence circles the globe. The church has 12 million members today and over half of them live outside the United States. Yet the birth of Mormonism and its history is one of America's great neglected narratives. This four-hour documentary brings together FRONTLINE and AMERICAN EXPERIENCE in their first co-production to provide a searching portrait of this fascinating but often misunderstood religion. Produced by award-winning filmmaker Helen Whitney ("Faith and Doubt at Ground Zero," "John Paul II: The Millennial Pope"), the film will explore the richness, the complexities, and the controversies of the Mormons' story as told through interviews with leaders and members of the church, with leading writers and historians, and with supporters and critics of the Mormon faith.

It’s often said that kids have their whole lives ahead of them. What happens when, early on, that life becomes a life in prison? FRONTLINE examines the convictions of the children who committed murder, and how they’re viewed in the eyes of the law.

With 35 million elderly people in America, “the old, old” — those over 85 — are now considered the fastest growing segment of the U.S. population. While medical advances have enabled an unprecedented number of Americans to live longer and healthier lives, this new longevity has also had unintended consequences. For millions of Americans, living longer also means serious chronic illness and a protracted physical decline that can require an immense amount of care, often for years and sometimes even decades. Yet just as the need for care is rising, the number of available caregivers is dwindling. With families more dispersed than ever and an overburdened healthcare system, many experts fear that we are on the threshold of a major crisis in care.