In a session devoted to the ancient mass grave containing some 80 shackled skeletons, found at Stavros Niarchos Foundation Cultural Centre (SNFCC) in the coastal Athens suburb of Paleo Faliro, Greece's Central Archaeological Council on Tuesday agreed on the specifications of an underground "shell" that will permanently protect and display the archaeological discovery, as well as approving a study on protecting the remains from the rise of brackish water, ANA reports.