Security camera footage obtained by Japanese television appears to show a careful and deliberate attack last week on the exiled half brother of North Korea’s ruler, while Malaysia said Monday it had recalled its ambassador to North Korea amid rising tensions between the nations. The footage, obtained by Fuji TV and often grainy and blurred, seems to show two women approaching Kim Jong Nam from different directions as he stands at a ticketing kiosk at the budget terminal of the Kuala Lumpur airport.