Despite being the world’s wealthiest nation, the U.S. has communities that are still exposed to toxic tap water. Today, we hear how a city in New Mexico has struggled with high levels of arsenic in its water — and how its residents are fighting back.

A high-profile prison escape. A TV station takeover. An assault on police. Today on “Post Reports,” how powerful gangs in Ecuador pushed this historically peaceful nation to the brink and led its new president to declare war.