The non-existent boycott

You know it, the illegal, immoral anti-Semitic boycott against Israel which Arab/Muslim states have strictly enforced since 1948: http://www.jpost.com/servlet/Satellite?cid=1192380556145&pagename=JPost%2FJPArticle%2FShowFull. I may be wrong about this, but I thought that this boycott was against U.S. law. Yet, I'd be willing to bet that the United States will be sending a delegation to this conference. I guess that I shouldn't be surprised. After all, discrimination against Jews has never really bother anyone, has it?