The government of Catalonia has presented a concrete proposal for a new referendum on independence from Spain. “A vote is possible, it’s just a question of political will,” said regional president Pere Aragonès in Barcelona on Tuesday. A clear question would be put to voters, which could only be answered with a Yes or No, he said: “Do you want Catalonia to become an independent state?” Aragonès said that such a referendum could take place on the basis of Article 92 of the constitution, which allows “political decisions of particular importance” to be put to a referendum. This would have to be …