Maryland State Superintendent Karen Salmon announced at a press conference on Wednesday the closure of all public schools in the state through April 24, a four-week extension of her March 12 order. “With the challenges facing our state and our country, we have a responsibility to ensure the health and safety of our school communities and the community at-large,” Salmon said. “I am working in concert with all local school system superintendents, including multiple calls per week, in order to