Maryland highway officials committed to avoid a historical African American cemetery when adding toll lanes to the Capital Beltway after 27 “ probable ” or “ possible ” unmarked graves were detected along the highway this summer, a state archaeologist said Thursday. Support our journalism.... “ It’s our responsibility now to repair that damage and come in and do the right thing.” The cemetery’s fate has been a focal point for opponents of Republican Gov.... Larry Hogan’s plan to relieve traffi