Study: Mass Killings, Shootings 'Contagious'

A study by U.S. scientists has found that media reports of mass killings and school shootings increase the incidence of similar events. A report published Thursday in the journal PLOS One finds events of mass violence spread "contagiously," and that 20 to 30 percent of such killings appear to be the result of "infection." The contagion period lasts about 13 days, researchers found. Under this model, for every three mass killings, an average of one more...

© La Voix de l'Amérique - jeudi 2 juillet 2015