The Knesset convened this morning for an official memorial session in the wake of the Siber Air plane crash seven days ago in which some 50 Israelis lost their lives. Prime Minister Ariel Sharon and opposition leader MK Yossi Sarid (Meretz) will both speak. Today has been declared a national day of mourning, and seven victims whose bodies were recovered and identified will be buried today. Seven others will be buried in Russia.