A federal judge in Philadelphia recently ordered Academy Award-nominated actor Terrence Howard to settle nearly $1 million in back taxes, interest, and penalties, RadarOnline.com has learned. The decision reportedly came shortly after Howard allegedly made threats towards a Justice Department lawyer and expressed his belief that taxing the descendants of slaves was “immoral.” The 54-year-old star, best known for his role in the TV hit Empire, has reportedly been embroiled in the legal battle with the IRS for over a year. The IRS claimed that Howard failed to pay $578,000 in income taxes betwee…