Watch Hidden Exposure: The Truth About the H-Bomb Tests for Free: How to Stream the Movie Online at 123Movies. . In 1954, the United States tested 6 hydrogen bombs on Bikini Atoll in the Pacific Ocean. Numerous Japanese fishing boats were operating in surrounding waters, and their crews were exposed to radioactive fallout. But the Japanese government has acknowledged the cases of just 23 crewmembers. Now, scientists from Hiroshima have shed light on facts that had been buried for 60 years.