Dave Davies

The finale of the Fargo TV series airs Tuesday. The characters are different, like a deputy sheriff played by Allison Tolman. But writer Noah Hawley says the Coen brothers told him he "nailed it."

In China's Second Continent, Howard French explores the Chinese presence in 15 African countries. The relationship goes beyond economics: more than a million Chinese citizens have migrated to Africa.

PBS looks at the origins of the agency's surveillance program and the extraordinary steps top government officials took to give it legal cover and keep it hidden.