Iran warns of crackdown on any student protests http://www.khaleejtimes.com/DisplayArticle08.asp?xfile=data/middleeast/2009/July/middleeast_July196.xml&section=middleeast Iran police fire tear-gas as 1000s mark 1999 unrest http://news.yahoo.com/s/afp/20090709/ts_afp/iran http://ca.news.yahoo.com/s/afp/090709/world/iran_82 http://www.msnbc.msn.com/id/31828921/ns/world_news-mideastn_africa/ Iran protests renew despite…