To return to the subject, the Germans had the technical capability to produce an atomic device.
Less than proved. The fact that SO many dispersed scentists and engineers were working in SO many locations but no viable device ever produced proves more that they DIDN'T have the capability by the end of april 1945. Many of these were working with NO interaction between them; in typical Nazi Era fashion, several teams working towards the SAME end but dividing resources of money, time, research capability etc., driven by separate Army offices. The smae difficultes paralysed various tank designs, aircraft designs, infantry weapon development....
As for "searching" for them is supposed to prove they were a
threat - quite the reverse; the Allies and in particular the Amercians carried out a LARGE number of intelligence missions to Europe after D-Day, I've recently been perusing for example the records of the O.S.S. mission sent in late 1944 to recover Me262 information and examples of technology. ALL intelligence bodies "closed the ring" of their investigations, they didn't just lock their desks and close their officer doors on the 8th of May 1945, they "clean closed" ongoing areas of investigation - and in the case of the atom scientists and rocket scientists they did so not ONLY to pad out American development efforts if necesssary - look at the
Prinz Eugen's radar for example; they demanded the PE be sent to the U.S. and stripped out her radar and spent months testing it...only to find it didn't compare with USN types...then literally threw it AND the PE away! - but to keep certain classes out scientists out of the hands of the Russians. After Potsdam, when Truman was careful to CONFIRM (not that he realised) everything that Stalin ALREADY knew) the existence of the American Bomb, the Russians were trawling their parts of Occupied Germany for scientists. From the Peenemunde neigbourhood for example they shipped over
NINE HUNDRED scientists and family members to Russia for the next 11 years or so...whereas exactly HOW many rocket scientists did von Braun persuade to come with him to America...IIRC
72???
Don't neglect the role that Paperclip and the Air Force version (can't remember its name at the minute) were playing in garnering skills and technology for the
on-going war, the one that for MANY months still looked as it would require an INVASION of the Japanese Home Islands to resolve...hence for example the separate USAAF
and USN work on V1 clones, for instance, the USN project running at Point Mugu.
It's quite clear from Keenan's "Long Telegram" that the U.S. government was entirely skeptical of Soviet Russia's expressed desires for peace and cooperation, and FULLY expected a conflict between them of SOME form. Given that - UNTIL they became aware of Klaus Fuchs, it was entirely normal to want to keep the German knowledge of atomic physics out of Soviet hands; which by a direct inference means putting it into AMERICAN hands