Google Assistant may promote advertisers without telling you about it

Google’s voice-recognition virtual assistant, Google Assistant, can do a lot now. It can be your personal interpreter, it can find you the best route home, and it can even donate to your favorite charity.
One thing Google Assistant won’t do, however, is disclose when its potentially recommending you a company advertising with Google.
When Google Assistant users ask their Google Home or Android device to help them find a local service provider, the search giant pulls its recommendatio