Though varying from yearly, the number of people killed in mass shootings in the U.S. has generally increased since 1982. There have been at least 20 mass shootings during Obama's presidency, including seven in 2012 that resulted in 72 deaths. A mass shooting is loosely defined as a single shooting episode in a single location involving four or more victims.

Happy to throw a wet damper on this one:

First, the definition of Epidemic from wikipedia en.wikipedia.org/wiki/Epidemic : is the rapid spread of infectious disease to a large number of persons in a given population within a short period of time, usually two years or less.

Second: lets spend our time on something meaningful:

Every day in America, another 28 people die as a result of drunk driving crashes. --

National Highway Traffic Safety Administration FARS data, 2013.

- See more at: www.madd.org/drunk-driving/ab…

Nice point Maximus. Relates back to the stat that launched this website in the first place (savvyroo.com/chart-187905-the…).