The number of calls to an FBI tip line designed to prevent and investigate mass shootings and other attacks rose by 70 percent in the week after the mass shootings in El Paso, Texas, and Dayton, Ohio, FBI officials said.

The Committee on Homeland Security Chairman Bennie G. Thompson (D-MS) and Ranking Member Rep. Mike Rogers (R-AL) issued a subpoena to Jim Watkins, the owner of the website 8chan, for testimony related to the Committee’s ongoing oversight work on countering extremist content on social media platforms

Mass violence, primarily shootings, is growing and can only continue to do so, and we have a professional obligation to analyze where the failures are and to take corrective action. 

After last weekend's shootings in El Paso, Tex. and Dayton, Ohio, there have been 251 mass shootings in 2019 to date, or mass shootings than days so far this year.

Jurisdictions throughout the nation increased security at houses of worship this weekend after a teen gunman killed one woman and injured a rabbi, a child and another man during Passover celebrations at a San Diego-area synagogue last Saturday. 

Twenty years after the Columbine High School shooting made practicing for armed intruders as routine as fire drills, many parents have only tepid confidence in the ability of schools to stop a gunman, according to a new poll by The Associated Press-NORC Center for Public Affairs Research.