Committed in svn revs 12340, 12341.

With Creative Commons licenses creators keep their copyright. If you want to
waive all restrictions on your work or certify that a work is already in the
public domain, see our <a href="/publicdomain">public domain tools</a>.

Proposed text:

Creative Commons licenses help authors who want to keep their
copyright and allow people to use their work under certain
circumstances.  Creative Commons also provides tools that allows users
waive their copyright so that works can be contributed to
the <a href="/publicdomain">public domain</a>

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Mike, please give +1 to this and I'll deploy.

See http://creativecommons.org/weblog/entry/13304#comment-200383