John R. Lott Jr. Ph.D. President. Crime Prevention Research Center –  Former VP Joe Biden says congress needs to bring back the ban on assault style weapons.  John Lott reacts to the calls for more gun control and background checks following the recent mass shootings.

<p><strong>John R. Lott Jr. Ph.D. President. Crime Prevention Research Center &ndash;&nbsp;</strong>&nbsp;Former VP Joe Biden says congress needs to bring back the ban on assault style weapons. &nbsp;John Lott reacts to the calls for more gun control and background checks following the recent mass shootings.</p>

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