That is a pretty awesome. I wonder if you could sell one with the design "I am the man in the middle." for NSA agents.

I must be dumb. I don't get what "and removed it" mean. Someone care to explain?

From the article -- http://philkast.com/2013/10/30/spying-tshirt.html

SSL needs to be stripped from the stream at the end point to allow the application to process the data received. If the endpoint is a human reader, there's no way to man-in-the-middle the message.

:)