What's the Straight Dope on the XA Cigarette?

AKA the palladium cigarette. I get why the lawyers shelved it; same reason Taco Bell will never release a burrito that results in solid and predictable bowel movements. Would this formulation have actually reduced instances of cancer by any meaningful percentage?

http://www.sourcewatch.org/index.php/James_D._Mold

Theres probably not enough palladium to meet the production requirements of implementing this program.