It is much easier for one over-broad subpoena or search warrant to reveal your private data if it's hosted on Google than if it's hosted on your own server. If

It is much easier for one over-broad subpoena or search warrant to reveal your private data if it's hosted on Google than if it's hosted on your own server. If everyone keeps their own data on their own machines, then they would need to subpoena or get a search warrant for each individual person, rather than a broad one attempting to fish for information. Furthermore, you can fight a subpoena. Do you trust Google to fight a subpoena on your behalf? How would they even know whether or not they should; how would they be able to tell if the subpoena is reasonable or not?