of the recession? green is no longer hot. we ll explain why that could be good. finally, what is the cheapest city for a world in an american ex-pat? we ll get to the debt ceiling in a moment. i wanted to give you my take on something else of importance that happened this week. ahmed walid karzai was gunned down by a close family associate. he was hamid karzai s half brother and ran the crucial southern provinces of afghanistan for karzai. his death has been described as a huge setback for karzai and for the international coalition that is trying to support the karzai government in kabul. let s try to understand why he was such a crucial figure. it provides a window into understanding the future of afghanistan. ahmed walid karzai was ruthless with tribes that would not support his brother, cutting them off from any aid and military assistance. in addition, he gave the american and british forces in afghanistan information on hostile tribes, provided crucial intelligence o