At a hearing in the International Court of Justice on Tuesday, Costa Rica dismisses claims made by the Nicaraguan government that road construction near the border represents an environmental threat.
The "bycatch" problem is slowing efforts to rebuild the bluefin population in the western Atlantic, which is at 36 percent of the 2012 level, according to the International Commission for the Conservation of Atlantic Tunas.
Panicked travelers scrambled to escape after the shooter, named as 23-year-old Paul Anthony Ciancia, pulled out the gun and shot his way through a security checkpoint.
For the first time, agents seized cocaine intended to be smuggled through the tunnel as well as more than eight tons of marijuana, indicating that Mexican drug cartels are getting increasingly "desperate," U.S. officials said.
UPDATE: We've added more fiestas to the list. Halloween might not be a traditional Tico holiday. But there are plenty of places to dress up and celebrate in Costa Rica.