Bussard's experiments were WB-6; he lost the battle against cancer in 2007. EMC2fusion then built WB-7 and validated Bussard's experiments (with technical data given to the government sponsors but not to the public). Now the EMC2fusion site has pictures of WB-8 and plans for WB-D. The results are still unpublished, but this acknowledges that WB-7 was a success, and that EMC2fusion is moving forward with plans for a net power machine."
Link to Original Source