Naomi Campbell Enters Oprah's 'No Phone Throwing Zone' 1.39K Max Read 04/29/10 01:18AM Filed to: Pledges Pledges Naomi Campbell Oprah Winfrey Phone Cell Phone blood diamonds Gettypic Oprah got Naomi Campbell to agree to a "no phone zone" pledge to not use her phone in the car, and a "no phone throwing zone" pledge to not assault people. The "no blood diamonds zone" pledge remained unsigned. [WWD]