Crypto++ licencing

Please CC me, I'm not subscribed to -legal...

Does anyone have any thoughts on the following licence?  Specificall,
is the comment about placing code in the public domain (point 2)
restrictive in the DFSG sense and do the potential patent issues
(point 6) require anything other that uploading to non-US?

LICENSE.txt
Description: Crypto++ licence

-- 
Stephen

"Farcical aquatic ceremonies are no basis for a system of government!"