Backstage congratulations. Marianna Vardinoyianni, UNESCO goodwill ambassador and president of the Elpida Association of friends of children with cancer, had no sooner received an award for her philanthropy from Greek President Costis Stephanopoulos, than she was off to see the Katia Dandoulaki Theater’s special performance of Harold Pinter’s play «Betrayal.» Proceeds from the performance will go to Elpida’s accommodation for children who are to receive bone marrow transplants and for their parents. Defense Minister Yiannos Papantoniou announced yesterday that the government will retain control of Hellenic Vehicle Industry (ELVO) by buying ETBA bank its 4-percent stake in the firm. ETBA is undergoing privatization. With this acquisition, the State’s direct stake in ELVO will rise to 52 percent. Papantoniou also announced, following a meeting with Economy and Finance Minister Nikos Christodoulakis and Development Minister Akis Tsochadzopoulos, that ELVO will build the «Kentavros» tank. The army command has approved the design and has asked for some improvements.