Around the world: 10 things to know Friday

FILE - This March 28, 2012 file photo shows Steven Tyler speaking at the Aerosmith news conference announcing the 2012 Global Warming Tour in Los Angeles. Tyler announced Thursday, July 12, 2012 that he will not be returning as a judge on the singing competition series "American Idol." Tyler served as a judge with singer/actress Jennifer Lopez and Randy Jackson on the 10th and 11th season of the series. (AP Photo/Katy Winn, file) Photo by
FILE - This March 28, 2012 file photo shows Steven Tyler speaking at the Aerosmith news conference announcing the 2012 Global Warming Tour in Los Angeles. Tyler announced Thursday, July 12, 2012 that he will not be returning as a judge on the singing competition series "American Idol." Tyler served as a judge with singer/actress Jennifer Lopez and Randy Jackson on the 10th and 11th season of the series. (AP Photo/Katy Winn, file) Photo by
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