With the CERN Large Hadron Supercollider coming on-line very soon, there is a lot of discussion about topics touched on in in my Supercollider SciFi story – including the possibility of wiping out this universe.  You can listen to a Science Friday interview on the Supercollider with Frank Wilczek, 2004 Nobel Laureate in physics. 
At http://www.sciencefriday.com/program/archives/200804111.  He is excited by what the machine can reveal and does not think the universe is threatened.   A New Yorker article on the LHC can be found at http://www.newyorker.com/reporting/2007/05/14/070514fa_fact_kolbert.  The CERN people are sufficiently concerned about the end-of-the-world fear that they have put up a web page at http://public.web.cern.ch/Public/en/LHC/Safety-en.html.  It provides assurance that a single proton-proton colision involves less energy than swatting a mosquito, though the bean energy “is equivalent to a 400 tonne train (like the French TGV) travelling at 150 km/h.”  Personally, I have bigger worries but I still think my story is fun.