erclaim
in a lawsuit) alleging that the Work or a Contribution incorporated
within the Work constitutes direct or contributory patent
infringement, then any patent licenses granted to You under this
License for that Work shall terminate as of the date such litigation
is filed.
</pre><p>Although it is useful, both legally and politically, to build
patent defenses into free software licenses this way, in the end these
steps will not be enough to dispel the chilling effect that the threat
of patent lawsuits ha