Last seen in:
Related Clues:
- Defense initiative, for short
- Notable act
- "This is only ___"
- Alamogordo experiment
- ''This is only ___!''
- Bikini event
- 1940s Bikini blast, in brief
- Moon landing, notably
- ''This is ___'' (radio broadcast line)
- Memorable act
- Triple flip, e.g.
- Historically significant trial
- Event in 1940s-'50s headlines
- 'This has been ___...'
- Boomer experiment?