Some volunteers dedicate their lives to finding the corpses of people who died crossing the US border from Mexico.

I don't think finding corpses is important; I wouldn't put any effort into that myself. Avoiding deaths is important.

The reason those people die is that they think two liters of water are enough to walk to safety. What efforts are being made to inform would-be migrants in Mexico of how much water is really needed? My rough estimate is 10 liters, which weighs 10 kg. Many of them, informed of this, would stay in Mexico rather than die in the desert. Only a few would be able to take advantage of the information to reach a town in the US.

Wouldn't an intense, truthful information campaign be more effective than a wall? Also cheaper, easier, less ecologically damaging, and less offensive to Mexico and Mexicans?

A leaked conversation implies Wikileaks was not interested in leaks from the Russian interior ministry in 2016.

Thousands protested in Hong Kong to demand the release of jailed protest leaders.

Amish people and nuns are resisting the construction of a fracked gas pipeline.

NAFTA renegotiation could be used to make copyright even more repressive in the US (and Canada and Mexico).