I promise some lighter fair here in the next couple of days but Adobe just published an update to a couple of versions of Adobe Reader that are labeled critical so you really need to update.
Start up Adobe Reader and in the Help menu select “Check for Updates”.

If there are updates available for your version they will be applied.
I would even suggest that if your not running version 10.0.1 (which I’m not in the picture above but I’m in the process of upgrading) that you go and update to this version. You can get it from Adobe at http://get.adobe.com/reader/