RE: US stole Codebreaking Limelight from Britain in WWII?

[Kossmann, Bill]

Peter Wayner wrote:

According to the Daily Telegraph, the US took most of the credit for 
breaking Japanese codes during WWII. 
<snip>

If I recall correctly, the Americans were successful in breaking the
Japanese diplomatic cipher 'Purple'.  This gave them some indication that
something was up in late 1941, however, they were still caught with their
RADAR down in early December.

Regards,

Bill 
(not an American ;-)