Andrew Sweigard, school principal, stands for a photograph in front of The Academy of New Media Middle School in Columbus, Ohio, U.S. on Saturday, Jan. 19, 2013. $250,000 in gifts from the Walton Family Foundation keeps the 85-student charter school alive. In the aftermath of the Dec. 14 massacre of 26 school personnel and pupils in Newtown, Connecticut, Sweigard said he's worried that its angel may be tarnished. Walton family members own more than 48 percent of Wal-Mart Stores Inc., the largest seller of guns in the U.S. Photographer: Ty Wright/Bloomberg via Getty Images