Just one enemy submarine active along North American Atlantic coast according to the U.S. Joint Intelligence Committee. Daily summary dated 5 April 1942

An item reported that except for the one in the Florida Straits are there were none enemy submarines active along the North American coast south of Cape Lookout.

Source

Map Room Papers (Roosevelt Administration), 1942 - 1945. U.S. Joint Intelligence Committee. Daily summary No. 116 dated 5 April 1942.