Cassez case: France and Mexico in a fierce spat

America's Republicans braved the weather in Florida for their national convention this week. It’s an opportunity to showcase nominee Mitt Romney, who so far has had trouble connecting with the public. Next, in the run-up to elections in Quebec, we witness the recent surge in support for a pro-independence party. Finally, could talking to the enemy work? Colombia's leaders have said they’ll hold peace negotiations with FARC rebels.

Republican Mitt Romney names Paul Ryan as his running mate in the US presidential contest. It's a choice that's set to please Tea Party voters, as the economy dominates the debate. Next, in Colombia, a children's sticker album has enraged local authorities. Youngsters are indeed being encouraged to collect images of some of the country's most notorious criminals. Finally, it’s time to say “Bye Bye London, Hello Rio de Janeiro”, as the curtain comes down on the 2012 Olympics.