I just had an idea. I have read that you can hide messages in digitized pictures. Wouldn't that be a great way for bad guys to send coded messages using pictures. One puts up a stupid post that he know will draw zots and cat pictures. Then he, or a colleague, posts a cat picture under another name with the the coded message. Because this is all happening at a harmless conservative website, it is not watched by anti-terrorist types as carefully as if it were a known Islamic terrorist website. And there must be an easier way to send messages to each other without using direct email.
I know, my imagination has run wild.