Wasn't there a story about Chin meeting some guy in a bathroom with the water (shower) running to give an order...??
I never got why they couldn't write an order on a piece of paper and then shred or flush it instead of making buffer noise incase of wiretaps?
And when you think about it they really wouldn't have had to shred the paper unless they thought that FBI was REALLY desperate.
According to Chin's daughter in her book, he used this method all the time. She mentions him & his guys writing things down then tearing up the paper and flushing or burning it.
