Mexico enjoys a long and deep trade relationship with the US, with products ranging from automobile parts and flat-screen televisions to tomatoes and chicken breasts flowing north across the border to the world’s biggest consumer nation.

But this week, Mexican politicians began talking about another potential export to the US market, which has so far only entered the country illegally: marijuana. Read more

Pass the pot? That is for legislators in Uruguay and Chile to decide.

Uruguay will become the world’s first country to grow and supply cannabis if parliament approves the legalisation of the drug in a bid to crack down on crime. Read more