The jury is still out on exactly why and how the Twin Towers fell, and investigative teams are frustrated by the politics keeping them from digging in to the evidence:
http://www.nytimes.com/2001/12/25/nyregion/25TOWE.html?searchpv=past7days
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Numbers: Tourism is Michigan's second most profitable industry, behind manufacturing, employing 150,000 people and collecting over $600 million in taxes, $11 billion in total revenue. But Michigan spends less than half of what Illinois spends on tourism ads, and some wonder if Michigan is serious about supporting and expanding its tourism industry. (Detroit News)