BEIRUT, Lebanon, May 9 (UPI) -- United Nations High Commissioner for Human Rights Volker Türk has warned that Israel's plan to expand its military offensive against Hamas, annex territory in Gaza and forcibly displace its population would cause further mass displacement and jeopardize the Palestinians' continued existence in the Strip. Türk said in a U.N. statement released Friday that Israel's reported plans to forcibly transfer Gaza's population to a small area in the south of the strip and