This week, focus in the US was on a caravan of Central American migrants stuck on the Mexican border. After three nights sleeping outside, close to 30 of them were allowed to request asylum in the United States. But 100 more are still waiting in a makeshift camp in Tijuana. We take a closer look. Also, this week saw another bombshell in the Russia investigation with reports that Special Counsel Robert Mueller raised the prospect of subpoenaing US President Donald Trump.

Finally, the white sand and turquoise waters of Tulum in Mexico are right out of a vacation brochure. While tourism has helped the town's economy, it's also come at a price. Concrete construction projects are cropping up every month, and Tulum is now faced with big problems of deforestation and pollution.