IANAL, but I'd be surprised if the police was allowed to raid me, launch tear gas through my window and shoot me in the head. Even with a warrant. I'm not worried about this happening, because it doesn't. If it did, I'm sure it would blow up into a huge scandal.
I am worried about government agencies intercepting my traffic / communications because it does happen, it's really hard to find out unless you know what you're looking for, and they don't have a warrant on every American citizen that happens to get caught.
startpage serves you google results, anonymized. It's sort of like scroogle was, I suppose.
ddg, I think, does their own spidering and also serves bing and other results (but not google), but that's from dusty memory and it could be wrong or changed. ddg will however forward your request to google if you want, and you'll get a results page from google itself. In fact I use ddg as a front end for google when I want to use google.
I am worried about government agencies intercepting my traffic / communications because it does happen, it's really hard to find out unless you know what you're looking for, and they don't have a warrant on every American citizen that happens to get caught.