Internet search giant Google (NASD: GOOG) has some explaining to do on the issue of privacy. Regulators around the world have been uncomfortable with some of the firm’s practices for years, and the latest in the ongoing saga comes from the European Union. The firm will have to appear before a group of EU data-privacy watchdogs as part of a probe that may lead to what the regulators called coordinated “repressive action” after it failed to fix flaws in its privacy policy. Throughout the course...