While learning from rpm and yum guru Jeff Johnson offlist, the thought occurred that some might enjoy reading <http://www.dwheeler.com/fourfours/> and Dr. Wheeler's thesis entitled "Fully Countering Trusting Trust through Diverse Double-Compiling" at <http://www.dwheeler.com/trusting-trust/dissertation/html/wheeler-trusting-trust-ddc.html>. Enjoy!