Americas Haiti struggles to 'build back better' two years after earthquake (+video)

Many of those displaced by Haiti's devastating 2010 earthquake have been relocated, and buildings and roads repaired. But reconstruction in Haiti has been complicated by deep economic and social problems. 

Dieu Nalio Chery/AP

Two years after a devastating earthquake in Haiti - an event some have dubbed the most complex humanitarian crisis of modern times - fresh signs of progress are offering hope.