Britannica.com Week in Preview: September 8-14 With the end of two weeks of political theater that we call conventions in the United States, now we can finally focus on things that are important–such as the 25th birthday on Sunday of British diva Amy Winehouse. In song she refused to go, but in May she finally succumbed and said yes to Rehab. But rehab didn’t stop her from winning a Grammy–the sho