read more. : Fintech Movers: Sandboxes offered by various federal and private banks, regulators, and large-scale organizations reflect the changing environment of bringing innovation to the table through collaboration. - MEDICI Watch For This: The FDA says a Washington state juice supplier is accused of inadequately monitoring toxic heavy metals. That could pose serious health risks to children, experts say. - The Counter Market Moving Headline: Bill Ackman has insured his Pershing Square hedge fund against a surge in corporate defaults after making $2.6 billion on a similar bet in the spring, according to the Financial Times. - Reuters.