I cannot create a summary of the requested article because the search results provided do not include the article titled "Opinion: The U.S. needs to be worried about Iranian biological materials" by Ashish Jha. The available search results contain information on Iran's chemical and biological programs from other sources, but not the specific article you requested to be summarized. In order to create an accurate and factual summary as per your requirements, I would need to have access to the full text of this particular article.