Princeton University president Shirley M. Tilghman, left, stands near as United Nations Secretary General Ban Ki-moon waves after speaking to students and faculty Friday, April 17, 2009, in Princeton, N.J. In his speech, Ban called 2009 a "make-or-break year" for the world. With growing poverty, financial risks and complex national security problems across the world, it's more important than ever for nations to work together, he said. AP Photo logo AP Photo 34 months ago

Princeton University president Shirley M. Tilghman, left, stands near as United Nations Secretary General Ban Ki-moon waves after speaking to students and faculty Friday, April 17, 2009, in Princeton, N.J. In his speech, Ban called 2009 a "make-or-break year" for the world. With growing poverty, financial risks and complex national security problems across the world, it's more important than ever for nations to work together, he said.