Today is D day for Diddy. Jury selection begins this morning in one of the toughest jurisdictions in the nation – the Southern District of New York – for the federal sex trafficking and racketeering trial of hip hop mogul Sean “Diddy” Combs.The 55-year-old Bad Boy Records founder faces up to life in prison on racketeering and sex trafficking charges, with prosecutors alleging he forced his ex-lovers into so-called “Freak-Offs,” and ran his company as a criminal enterprise.