We can't rewind to Sunday afternoon, but we sure as heck can begin the process of preventing another horror by common sense restrictions on weapons.  Gun shows, online purchases and private sales of guns do not require background checks. A person's name can be on a no-fly list but still pass a gun background check.  Restrictions have been reduced on mentally ill people acquiring weapons.  Semi-automatic weapons can be modified to fully automatic operation.  This week, a bill legalizing silencers is scheduled to be addressed by the House.  If politicians weren't in the pocket of the NRA, we all wouldn't be held hostage by the gun lobby.  A huge majority of Americans want to at least effect common-sense measures...yet McConnell says nope.  The White House says "now is not the time."  When is the time...after the next tragedy with more lives lost? 
NOW is the time!