Donald McCollister Showers, RADM/USN (Ret.), died 19 October 2012. Intelligencer 19.3 (Winter-Spring 2013): 71.
Showers, D. M. [RADM/USN (Ret.)]
1. "The Second Gulf of Tonkin Attack: Revisited, Revised, Rejected; ADM Stockdale Remembered." Naval Intelligence Professionals Quarterly 21, no. 3 (Sep. 2005): 14.
This is a brief review of the refutation of a second North Vietnamese attack in the Gulf of Tonkin on 4 August 1964.
2. with Dick McDonald [CAPT/USN (Ret.)] "The Tonkin Gulf Attack, August 1964." Naval Intelligence Professionals Quarterly 24, no. 2 (Apr. 2008): 4-6.
The author reviews the state of play on assessing the reporting of North Vietnames attacks in the Tonkin Gulf on 2 and 4 August 1964. Yes, there was an attack on 2 August; no, there was no attack on 4 August.
Showers, D. M. [RADM/USN (Ret.)] "ULTRA: The Navy's First COMINT Weapon." Naval Intelligence Professionals Quarterly 10, no. 2 (Apr. 1994): 8-10. Reprinted, together with "some other materials," as "ULTRA: The Navy's COMINT Weapon in the Pacific," American Intelligence Journal 15, no. 1 (Spring-Summer 1994), 49-53.
"[T]he rate of progress of the entire war, and possibly even the outcome, would have been vastly different without our effective use of the COMINT weapon."
Showers, D. M. [RADM/USN (Ret.)] "The 'Y1' Story: Opintel in the Post WWI Navy." Naval Intelligence Professionals Quarterly 5, no. 3 (Mar. 1989): 1-5.
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