In Rwanda, transporting critical medicine and blood can be difficult if the patient is in a remote location. Heavy downpours can wash out the roads, and local hospitals are often too small to stock everything their doctors might need. Now, the Rwandan government is side-stepping the problem with a drone delivery program. In the western half of the country, 21 transfusion clinics can request batches of blood via text. The order will be picked up by Zipline, a California-based robotics firm, at its "nest" base in Muhanga. A small drone will then be deployed and, upon arrival, swoop down low to drop the package off at a designated "mailbox" area.