The following regions and issues are among those critical to both short- and long-term US interests. They should draw greater US attention and diplomatic efforts.
Russian President Vladimir Putin has signed several energy deals in Latin America as he visits the region this week. Will it hurt the US's energy influence, or is Putin just focused on expanding Russia's economic relationships?
When Brazil decided to host the World Cup there was hope that both rich and poor citizens could see games live on their home turf. That hasn't been the case.
Primary school quality in the world's No. 7 economy ranks below impoverished Haiti. But galvanizing Brazilians to boost education for all is no easy task.
Reactions in the region have ranged from name calling to accusations of Russian meddling to observations of declining world powers.