Huawei shows up in just about every problematic country. They had breached UN sanctions by delivering unapproved telecom and other high-tech gear to Iraq before 2003 and had installed a fiber network to help Saddam coordinate his air defenses. They were reportedly (by the Indian press) building a new fiber-optics phone network and surveillance systems in Afghanistan when we invaded there, and those assets were among the first targeted by US/Nato airstrikes. They were all over Libya until February and are still desperately trying to hang on to their embedded assets there:
http://www.shenzhen-standard.com/2011/08/25/huawei-to-rebuild-telecommunications-infrastructure-in-libya/
Phone systems are strategic assets and entrusting them to a foreign firm like Huawei is tantamount to forging a client state relationship with the Chinese. When you do that, trouble follows. For more, see:
http://www.amazon.com/Oil-Card-Economic-Warfare-Century/dp/097779539X/ref=sr_1_1?ie=UTF8&s=books&qid=1199719101&sr=8-1