Yemen's Houthis: from ragtag militia to geopolitical heavyweight

Yemen's Houthis: from ragtag militia to geopolitical heavyweight

Middle East Correspondent Angus McDowell explains how the Iranian-backed Houthis' capture of the last stretch of Yemeni coastline around the Bab el-Mandeb Strait has handed the group a major strategic win, giving them the ability to strike shipping and squeeze global oil markets.