Alakum
Welcome to Wikipedia.
Please take a look at WP:Reliable sources. Under our policies, you can't add information about living people to their biographies without including reliable sources.
In order to describe something as a controversy, we need a reliable source that refers to it as a controversy. "Controversy" isn't a catch-all phrase for "all the stupid things this person has ever said" or "all the things this person has said that I don't like".
If you have questions, I encourage you to leave a message at Talk:Antony Loewenstein, my Talk page, or right here. Please do not keep inserting the same text into the article without discussing it. That is considered edit-warring, and it may lead to your being blocked.
Thank you. — Malik Shabazz Talk/Stalk 04:52, 5 February 2011 (UTC)