Greetings,  I am on the comfood listserve, and there has been some good info shared over there regarding s510 and the amendments in question also....

FOR SUBSCRIBING AND UNSUBSCRIBING TO COMFOOD, AND FOR ALL POSTING GUIDELINES,
PLEASE CLICK ON THE FOLLOWING LINK :http://foodsecurity.org/Comfood_Posting_Guidelines.pdf

I also support www.healthfreedomusa.org -  the org is natural solutions foundation, they are doing a great job covering codex as well as this current bill

all the best -hope