u.s. navy hospital ship comfort. georgia, ohio, and texas among the states taking those first steps to reopen. some restaurants now seating customers for the first time in weeks. some without masks. there is new reporting on antibody testing, as americans look for any proof they've been exposed to the virus, and whether that means they have any immunity, and for how long. tonight, the new study on the reliability of these tests. and new york state revealing today, nearly 15% statewide of those tested do have antibodies in their systems. but what does that mean? as the world health organization now warns, we do not know if it means you have immunity. could there be a new treatment? the new research tonight involving a common heartburn drug. and tonight, the science. why they think it's worth studying. the food in your grocery store. the warning tonight from a major food producer that, quote, "the food supply chain is breaking." what that could mean for meat at the supermarket, and the prices you pay. and the crowded passenger plane here in the u.s. the flight nearly full. little chance of social