maybe he is scared that north korea would paint a target on him if he would investigate the sinking of the sourth korean ship. he knows israel will not touch him. this coward as well as the u.n are looking for an easy target. there are plenty of thing that have happened that could use looking into. lets us look at things in the order that they took place. based on what is bing done here the u.n. is just picking on israel.
Death toll in Ankara blasts rises to 86 (AP)
from the article: UN Chief proposes joint Turkey, Israel and U.S. Gaza flotilla probe