LEARNING FROM THE PASTIxtochttp://www.talkingpointsmemo.com/archives/2010/05/weve_been_here_before.phpBack in 1979, in a different part of the Gulf of Mexico, a similar oil rig (Ixtoc I) blew up more or less like the Deepwater Horizon one did. And a similar amount of oil gushed out. Even more worrisome, Pemex (the Mexican state oil company) tried pretty much all the different approaches to