I got this note from google:
European Union laws require you to give European Union visitors
information about cookies used and data collected on your blog. In many
cases, these laws also require you to obtain consent.
courtesy, we have added a notice on your blog to explain Google's use of
certain Blogger and Google cookies, including use of Google Analytics
and AdSense cookies, and other data collected by Google.
are responsible for confirming this notice actually works for your blog,
and that it displays. If you employ other cookies, for example by
adding third party features, this notice may not work for you. If you
include functionality from other providers there may be extra
information collected from your users.