Why Does the U.S. Care About Haiti?

Since 12th of Jan, 2010, Haiti has been devastated by sever earthquakes. Among other countries, the U.S. has been the most active sending navy carriers and troops to the poor island nation. You wonder why besides the U.S. being a great democracy who values human rights?

Where is Cuba and where is Haiti? Maps do not lie. Stationing troops in Haiti will help America choke Cuba from two directions.

 Secondly, Haiti has been well-known for its wide plantation of coffee beans, sugar and indigo, very sought-after commodities in today's market and from a long run with BRIC increasing their appetite.