Cheap American Pesticides Killing Africa's Lions (VIDEO)

Last night's "60 Minutes" featured a piece on why some experts believe that Africa's lions are in danger of going extinct.

The lions have had a rocky relationships with Maasai cattle farmers for a long time -- the lions kill the farmers' cattle, and the Maasai kill the lions to defend their livelihoods and as a rite of passage.

Now, some Maasai have switched from spears to a poison banned in Europe. It's marketed as a pesticide.