Haitians and other US-bound migrants are boarding boats from Colombia by the hundreds each day. Next stop: the Darien Gap, a jungle that's feared as much for the armed rebels and narcos as for the snakes and jaguars.
Israel has one of the lowest rates of organ donation in the developed world. But advocates hope that religious and political leaders like the late Shimon Peres can help persuade Israeli Jews to sign up.
Sections of Ukraine's national medicine cabinets have been running empty since the country's conflict with Russia began. As a result, diseases that were under control for many decades are making a comeback.