TheCodeBreakers
On July 10, the swirling desert warfare brought the Afrika Korps staff
headquarters directly into the path of a British armored thrust. In a
brief, fierce spurt of action, the brilliant Seebohm was killed and most of
his unit wiped out or captured. Many of their records fell into British
hands. This loss deprived the company's replacements of a great deal of
necessary information, and at the same time enabled the British to
correct many radio-security mistakes. Rommell thus lost the microscope
that scrutinized the enemy lines and presented to him so many bits of
information.
At about the same time he lost his telescope. The United States
appears to have had some suspicion of the leak earlier in the spring,
when two officers came out from Washington to check on Fellers' security
measures. They cleared him, and perhaps this lulled their fears until new
information reached the Allies. Apparently a prisoner of war told the
annaabi.ee 
