A beleaguered stowaway climbs onto the roof of a lorry in Ireland

In Ireland, the police stop a truck for a check-up. When the rear door opens, an illegal immigrant steps out and climbs directly onto the roof of the vehicle with surprising agility. The video has rekindled debate: some see it as proof that there are trained soldiers among the migrants. Others point out that it could simply be a passenger determined to escape. The images are circulating widely online, fuelling all kinds of commentary.