Update: During a televised news conference, La Salle spokesman Greg Tankersley said the school will not release the name of the student who shot himself this morning, at his parents' request. Tankersley said the boy, still in critical condition, is an honors student, with 80 hours of community service.
Interest in "smart guns," using biometrics and radio frequency technology, has rebounded following recent gun violence. President Obama has included them as part of his plan to reduce such mass shootings. Who makes these guns? How do they work? And will they catch on? Ann Thompson reports in "Focus on Technology."