INJURED. IN ALAMANCE COUNTY, SCHOOLS WILL HAVE EXTRA SECURITY ON CAMPUS TODAY AFTER THE DISTRICT SAYS IT WAS MADE AWARE OF A POTENTIAL THREAT TO SCHOOLS ON SOCIAL MEDIA. OFFICIALS SAY IT HAS BEEN DETERMINED AS NOT CREDIBLE. THEY POSTED A STATEMENT ON FACEBOOK THAT SAID, QUOTE, THIS IS A NATIONWIDE ISSUE AFFECTING MANY SCHOOL DISTRICTS. WE TAKE EVERY REPORT SERIOUSLY AND WORK CLOSELY WITH LAW ENFORCEMENT TO INVESTIGATE ALL CONCERNS. THEY DID NOT SPECIFY WHICH SCHOOLS WERE THREATENED. WINSTON-SALEM FORSYTH COUNTY SCHOOLS IS ALSO ADDRESSING SAFETY CONCERNS, THE DISTRICT ADDED MORE METAL DETECTORS AT SCHOOLS YESTERDAY AFTER THE DISTRICT LEARNED ABOUT A THREAT MADE TO MULTIPLE SCHOOLS ON WEDNESDAY. DISTRICT LEADERS DID NOT SAY WHO MADE THAT THREAT OR WHETHER IT WAS CREDIBLE. DURING A NEWS CONFERENCE YESTERDAY, SUPERINTENDENT TRICIA MCMANUS EMPHASIZED THE DISRUPTION THAT SPREADING THREATS ON SOCIAL MEDIA HAS IN THE CLASSROOM. THE REPOSTING OF THREATS IS …