Cookies set by the Safe Browsing servers to
protect the service from abuse are stored in
a separate cookie jar so that they are not
mixed with regular browsing/session cookies.
And how are these cookies cleared? Seems like as soon as some sort of ID appears in one of these cookies, XKeyScore will track your every (physical) move with it even if you take care to delete all your regular cookies and don't browse the same sites on different networks. Why does this protocol even allow for cookies to be set at all in the first place?