Facebook is launching two video call machines for the home in the midst of its latest data breach scandal. The Portal products automatically zoom in on users and follow them as they move, to offer a superior experience to existing smartphone and tablet apps. The devices rely on Facebook Messenger to make and receive calls and also feature Amazon's Alexa smart assistant. But consumers may have privacy concerns and a rival device-maker suggested the very concept was "tech clutter". "It's staggeringly unfortunate timing," commented Jeremy White, product editor at Wired UK magazine.