Here's a peek behind the cable TV curtain. It's not pretty. So, my publicist arranges for me to go on MSNBC's Hardball with Chris Matthews on Thursday night to talk about my recent columns on the FBI and national security profiling and my new book. Despite the show's basement ratings, we figure it's a good opportunity to reach out to a new audience. FOX News, with whom I have a contract, has generously allowed me to appear on some competing networks to talk about the book. Thursday was the second to the last day that I could make such appearances....