Al Qaida

As the 20th anniversary of the Sept. 11, 2001, attacks approaches, a new biography by journalist Peter Bergen traces Osama bin Laden's path from a shy, religious teenager to the leader of a global jihadist group dedicated to mass murder.

Clint Watts developed online relationships with terrorists and their sympathizers in order to understand and undermine terror networks. He also researched Russian efforts to influence U.S. elections.

Reporter Gregory Johnsen talks with Fresh Air's Dave Davies about the humanitarian crisis in Yemen and how the chaos is impacting the U.S. fight against al-Qaida. Johnsen describes a country torn apart.

Last year, journalist Rukmini Callimachi found thousands of al-Qaida documents in Timbuktu in Mali. She tells Fresh Air about al-Quaida's strategy of kidnapping Europeans and demanding ransoms.

The journalist who covered the war in Iraq, and its aftermath, details the militant Sunni Islamist group, the power it has in Iraq and Syria and how its war is destabilizing neighboring countries.

Adam Nossiter, the West Africa bureau chief for The New York Times, is one of the few reporters covering the situation in northern Mali, where Islamist extremists allied with al-Qaida have taken control after a coup destabilized the country in April.

In his new book, journalist Gregory Johnsen charts the rise of Yemen as a haven for al-Qaida and explores the recent history of radical Islam in the Arabian Peninsula. The death of Osama bin Laden, he says, had more of an effect on the U.S. psyche than it did on people in Yemen.

Former FBI agent and interrogator Ali Soufan talks about dysfunction and rivalries inside the government's counterterrorism agencies that led to missed opportunities — as well as the ineffectiveness of enhanced interrogation techniques on collecting intelligence.

America's anti-terrorism strategy has evolved in the years after the Sept. 11 attacks. New York Times reporters Thom Shanker and Eric Schmitt explain some of the tactics used by the United States over the past decade to disrupt al-Quaida both in real life and online.

CNN's national security analysts Peter Bergen just returned from Pakistan, where he just returned from Pakistan, where he visited the town where Osama bin Laden was killed. He talks about the various conspiracy theories surrounding bin Laden's death -- and how al-Qaide has changed in recent years.

In December 2009, an al-Qaida mole believed to be a CIA informant detonated a suicide bomb inside a fortified military base in Pakistan, killing seven CIA employees. Reporter Joby Warrick writes about the man who pulled off the attack — and explains how he did it — in The Triple Agent.

The Pakistani journalist, who has written extensively about the Taliban and al-Quaida, discusses what officials might have known about Osama bin Laden's presence in Abbottabad and what impact his death may have on the future of U.S.-Pakistan relations.

New Yorker staff writer Lawrence Wright has spent the past 15 years of his career thinking about al-Qaida. Wright assesses what bin Laden's death means for the future of al-Qaida and the United States' relationship with Pakistan.

Matthew Alexander, a pseudonym for the author, was a military interrogator in Iraq who rejected previously used harsh techniques. He writes about how his team hunted down two key al-Qaida operatives in Kill or Capture.

Lawrence Wright talks about the history of the Muslim Brotherhood, a group banned in Egypt by the regime of President Hosni Mubarak that could play an important role in the future of the country.

A new HBO documentary details Wright's experiences writing his Pulitzer Prize-winning book The Looming Tower. Wright explains what he learned while interviewing sources for his book -- and talks about the challenge maintaining objectivity while researching modern terrorism.

The filmmaker's documentary The Oath tells the story of two men who both worked for Osama bin Laden and then wound up in incredibly different spots: One drives a taxicab in Yemen, while the other sits in solitary confinement at Guantanamo. Poitras how she gained access to the story -- and why questions still remain about the film's protagonist.

President Obama has said he wouldn't send more troops to Afghanistan if he didn't think the security of the American people was at stake. Peter Bergen gives us an update on the threat: what's left of the Taliban and its connection to al-Qaida.

Journalist Ahmed Rashid's new book, Descent into Chaos, examines the Unites States' nation-building efforts in Pakistan, Afghanistan and Central Asia. Rashid argues that U.S. efforts have failed — and served to destabilize the region further.

Lawrence Wright is an author, screenwriter, playwright and a staff writer for The New Yorker magazine. He sits on the Council on Foreign Relations, and he won a Pulitzer Prize for his book The Looming Tower: Al-Qaeda and the Road to 9/11.