Miami Herald's Coverage of the Americas / April 15

Here's this week's regional news update from the Miami Herald Americas section:

• A Chilean businessman dies in Cuba.
• Mexico's Zetas drug gang is now in El Salvador.
• The opposition in Nicaragua slams the ruling party over Supreme Court term extensions.
• Nine die in drug gang shootings in Honduras.
• Avatar director James Cameron helps delay construction of dam that threatens the Amazon jungle in Brazil.