There was a recent post about the explosion at the WIPP faculties. They were to be the repository of toxic material from Los Alamos, but it caught fire and was forced to shut down. The post stated that:
More than three months after the leak, LANL chemist Steve Clemmons compared the ingredients of the drum, labeled Waste Drum 68660, to a database of federal patents and found that together, the drum’s contents match the makeup of patented plastic, water-gel and slurry explosives, according to a memo. “All of the required components included in the patent claims would be present,” Clemmons wrote in the May 21 memo.
The article goes on to say that the substitution of organic wheat-based cat litter for clay-based cat litter may have been due to a typographical error!