Dear Mr. Cameron
I hear you and your cronies are pushing for routine monitoring of our email and search activity. Let me save you some trouble.
Here is my last few searches…
BS
Shame you’re using Google search for that and therefore having your browsing history and search recorded by a private company 
You better bet would be to use GPG and encrypt emails… Of course, others need to know how to unencrypt them…
Shame you’re using Google search for that and therefore having your browsing history and search recorded by a private company
Not if the search requests are going via tor. Google will have records from a bunch of random exit points.
In case my ranty BS is not a good enough summary El reg have covered the story here.
The sort of stuff I send e-mails about would bore the pants of them anyways, so go ahead and spend the money.