A French flag with the message in French "I am Charlie" stappled to is is pictured on the main square in central Burgos on January 11, 2015 during a public show of solidarity and to protest against three days of bloodshed triggered by an attack on French satirical weekly Charlie Hebdo that left 12 dead. From London to Berlin via Washington and Montreal, rallies are organized throughout the weekend with the highlight in Paris where more than a million people and dozens of world leaders are expected to participate in a massive and historic march in Paris today in solidarity with the victims of the Islamist attacks that killed 17 and deeply shook the country. AFP PHOTO / CESAR MANSO (Photo credit should read CESAR MANSO/AFP/Getty Images)
