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In May 2011, US Special Forces shot and killed Osama Bin Laden in Pakistan. Publicly Pakistan is one of America's closest allies -- yet every step of the operation was kept secret from it.

Filmed largely in Pakistan and Afghanistan, this two-part documentary series explores how a supposed ally stands accused by top CIA officers and Western diplomats of causing the deaths of thousands of coalition soldiers in Afghanistan. It is a charge denied by Pakistan's military establishment, but the documentary makers meet serving Taliban commanders who describe the support they get from Pakistan in terms of weapons, training and a place to hide.

Part 1 of Secret Pakistan investigates signs of duplicity that emerged after 9/11 and disturbing intelligence reports after Britain's forces entered Helmand in 2006.

Check airtimes for Secret Pakistan: Backlash (Part 2)

Spotlight is a Link TV weekly presentation of investigative reports from around the world. Commentary is provided by host Lakshmi Chaudhry, who has been a reporter and editor for independent publications, including Mother Jones, Wired News and AlterNet, for over six years. She is currently a senior editor at In These Times.