[TheLion]

"The only thing this process can't handle is nuclear waste," says Appel. "If it contains carbon we can do it."

http://www.sovereignty.org.uk/features/footnmouth/zwaste2.html

[HiTech RedNeck]

Oh, that pesky periodic table. Oil is carbon and hydrogen. Lotsa other elements to deal with, and for that matter a dearth of hydrogen to go with all the carbon.