People listen while Recep Tayyip Erdogan, Prime Minister of Turkey, speaks during a meeting of the "Group of Friends of the Syrian People" at the Istanbul Congress Center Sunday April 1, 2012 in Istanbul, Turkey. US Secretary Clinton is in Turkey to attend the second meeting of the "Group of Friends of the Syrian People" a collection of 60 nations attempting to end the violence by the Assad regime towards its citizens in Syria. (AP Photo/ Brendan Smialowski, pool)