The World Health Organization is expected to release a report on its investigation into the origins of the novel coronavirus in the coming days. Among the many theories is the unproven belief that it was passed on from bats — leading to much public fear of the mammals. But the growing threat to bats could mean bad news for us too. Special correspondent Catherine Rampell reports. PBS News is supported by - https://www.pbs.org/newshour/about/funders