Last October, the Hazelwood School District closed Jana Elementary School in Florissant, Missouri, after a company called Boston Chemical Data Corporation issued a report that said there was radioactive contamination in the school and that it was dangerous. But, the scientific consensus shows that radioactive contamination isn’t present. We listen to STLPR education reporter Kate Grumke’s extended conversation with Roger Lewis, a professor emeritus at St. Louis University, who is critical of the report. In a follow-up conversation, Kate also shares how Boston Chemical is responding to the criticism and what parents are saying.