letter and the men who received it did not destroy this letter, , a shopkeeper john carnes former minister. so the american army still had a lot to learn about spy craft. the letter revealed intelligence ring they had set up to send correspondence into boston to john carnes had already been infiltrated by a british it -- british double agent, which they did not know until, at the end of september, washington was shown a cipher that are from a man trying to get it into boston. after having the letter decoded by two men, he discovered that the man who sent this letter in was dr. benjamin church, the doctor of the continental army and someone who sent him to send the letter into john carnes. so the double agent was already inside the american intelligence ring. washington and his staff became much more careful about handling intelligence. he didn't suffer worse consequences, but in his note big he says the names of each person's employee behind enemy's will be omitted from my records. he has learned the value of secrecy. another big lesson was the value of the new england soldiers. there was a wide if is betw