The mastermind of a vast conspiracy that tricked and coerced young women into filming pornographic videos that were posted online without their consent pleaded guilty Thursday in San Diego federal court to two sex-trafficking charges that could see him sentenced to life in prison. Michael James Pratt, the 42-year-old New Zealand citizen who created and operated the website GirlsDoPorn, pleaded guilty to one count of sex trafficking by force, fraud or coercion and one count of...