Castle Bravo
Castle Bravo was the first in a series of high-yield thermonuclear weapon design tests conducted by the United States at Bikini Atoll, Marshall Islands, as part of "Operation Castle". Detonated on March 1, 1954, the device was the most powerful nuclear device detonated by the United States and its first lithium deuteride fueled thermonuclear weapon. Castle Bravo's yield was 15 megatons of TNT, 2.5 times the predicted 6.0 megatons, due to unforeseen additional reactions involving Li, which led to the unexpected radioactive contamination of areas to the east of Bikini Atoll.
Castle Grande
McDougal then loaned his old friend and political mentor, Senator William Fulbright, $700,000 to buy out the bulk of Ward's remaining holdings. The net effect was to remove Ward's non-recourse loan from the Madison books and generate substantial sales profits and commissions for Madison. The transactions were designed to be confusing to keep the regulators from finding Ward's loan and Madison's full investment in Castle Grande. The federal thrift examiners arrived the first week of March, 1986. The Dean Paul loan done on February 28.