The US Department of Justice is suing Google over monopolizing it’s power with internet searches. This is part of an investigation that has been going on for some time. If this suit follows through and wins, this can hurt Google’s advertising business.
This is a very bold step of the US government to do on Google. As we heard a few days ago, this may break up Google by them having to sell parts of their business, i.e. Google Chrome, YouTube. I don’t know if this is going to be better or worse but we will have to see what goes do