It may be April first, but the President’s team is doubling down: the threat to close the southern border is quite serious. Mexico is Texas’s top trading partner, and concerns are growing over the possibility and the viability of a border shutdown. Also, the border agent who had a secret: he too, was an undocumented immigrant. And Houston, we have liftoff: a race for space-related books on the 50th anniversary of the 1st moon landing. Plus researchers trying to save Texas bats: a danger of doing more harm than good? All that and more today on the Texas Standard: