Google and the European Union aren't on great terms. Over the past five years, the EU has investigated Google under antitrust laws, criticized its privacy practices in Street View photos and for Wi-Fi collection, and even forced it to remove links from searches when EU citizens request it.
However, the EU is still worried because Google owns 90% of the European search market. While the EU hasn't been able to prove that Google uses its wide reach for anything unethical - such as favoring its own services over competitors - legislators still worry that Google might in the future.
This has led to some interesting proposals, one of which includes forcing Google to split Search from its other products. If you've used Google, you know how interconnected its services are, which would make that a huge undertaking.
The result probably wouldn't change much anyway. Internet users would need to have separate passwords for Google Search -assuming they wanted one - and other Google services.
Of course, the big question is whether or not the EU even has the power to do this in the first place. Naturally, the answer is tricky.