Related Clues:

• '54 event on Bikini atoll
• Bikini trial
• Explosive '50s trial
• ''This is only __''
• Bikini Atoll event, briefly
• Bomb trial, in old headlines
• 'This is only ___ . . .'
• Bikini atoll event
• Explosive trial, briefly
• Defense initiative, for short
• "This is only ___"
• Alamogordo experiment
• ''This is only ___!''
• Bikini event
• 1940s Bikini blast, in brief