Sep.17 -- Apple Inc. fights the world’s biggest tax case in a quiet Luxembourg courtroom this week, trying to rein in the European Union’s powerful antitrust chief Margrethe Vestager ahead of a potential new crackdown on internet giants. The court must weigh whether regulators were right to levy a record 13 billion-euro ($14.4 billion) tax bill. Maria Tadeo reports on "Bloomberg Daybreak: Europe."