Four
That's the actual number of mass shootings there have been in America this year -- not 355, as Rachel Maddow and others reported, writes Mark Follman in The New York Times:

What explains the vastly different count? The answer is that there is no official definition for "mass shooting." Almost all of the gun crimes behind the much larger statistic are less lethal and bear little relevance to the type of public mass murder we have just witnessed again. Including them in the same breath suggests that a 1 a.m. gang fight in a Sacramento restaurant, in which two were killed and two injured, is the same kind of event as a deranged man walking into a community college classroom and massacring nine and injuring nine others. Or that a late-night shooting on a street in Savannah, Ga., yesterday that injured three and killed one is in the same category as the madness that just played out in Southern California.

While all the victims are important, conflating those many other crimes with indiscriminate slaughter in public venues obscures our understanding of this complicated and growing problem. Everyone is desperate to know why these attacks happen and how we might stop them -- and we can't know, unless we collect and focus on useful data that filter out the noise.

Obama's calling for the non-solution -- especially for people slaughtering for Allah -- of tougher gun laws. Ed Morrissey writes at Hot Air:

The tougher gun laws Obama wants already exist in California. In fact, California's laws are tougher than those proposed by Obama. The Washington Post cited them yesterday as the toughest in the nation, with background checks required for private sales, mandatory 10-day wait times, and bans on so-called "assault weapons." How did that work out in San Bernardino this week? (For that matter, how did roughly the same laws in Connecticut -- cited by the Post as the second-toughest state in the Union for gun regulations -- work out in Newtown a few years back in a non-terrorism case?) Gun control didn't stop terrorism in California, which may be why Obama wants to ignore the FBI's findings that this was a case of radical Islamist jihad conducted by someone who'd been given a green light by his State Department.