Google on Wednesday said it removed 1.7 billion bad advertisements from its various sites in 2016, more than double the prior year’s totals. Google took several steps to crack down on the deceptive advertising, including updating its policies to protect users from “misleading and predatory offers.” It also beefed up its technology to help identify misleading ads and remove them, according to Scott Spencer, Google’s director of product management, sustainable ads. A free and open Web is a vital resource, he noted.