Ten years ago, amateur tilapia farmers in China were able to dig a pond, fill it with fish, add antibiotics and chemicals, and a few months later sell the fish to numerous unregulated processors. In those early days, fish farming created a great economic boom for first-time aquaculture farmers.

2016 was an eventful year for the continent of Africa, with important implications for U.S.-Africa relations. The Wilson Center’s Africa Program asked experts, scholars, and policymakers to weigh in on the most important and impactful events. This collection of essays reflects on those developments and their impact going forward.

MEXICO CITY – On bad days, you can smell the stench from a mile away, drifting over a nowhere sprawl of highways and office parks.

President Trump seems to conceive of domestic counter-terrorism efforts as analogous to a police roadblock. Potential terrorists, like vehicles, wait in single file, pull up to the checkpoint, are evaluated, and either stopped or allowed to proceed depending on whether they pose a threat. If only our vetting can be made “extreme” enough, we can apprehend those intending us harm.

The legal commercial exotic animal trade is a booming enterprise that ships ornamental fish, mammals, birds, reptiles and amphibians around the world. These pets, livestock and other animals can carry unexpected infectious diseases from their homelands. If these non-native species escape or are released to the wild, they can create epidemics among susceptible endemic wildlife.

“We are seeing floods, droughts, extreme weather events, migration of people across borders, as well as sea-level rise, and we are going to see increasing challenges,” says Wilson Center Senior Fellow Sherri Goodman in an interview with the German think tank, adelphi.