Will people return to packed convention centers?

We'll start getting answers to that question this week from Las Vegas, where the World of Concrete trade show for the construction industry is kicking off. Las Vegas did $11 billion in trade show and convention business back in 2019. Also, the annual price tag on a newly approved drug to treat Alzheimer's is about $56,000, even as there are lingering questions about the drug’s effectiveness in slowing the progression of disease. And, an update on a proposed law in China seen as a response to U.S. sanctions.