This is WEEKEND EDITION from NPR News. I'm Linda Wertheimer. Scott Simon is away. The crisis in the country of Yemen intensified this week. The government has collapsed. Houthi rebels hold the presidential palace. Clashes between regional militias have left many people dead while Saudi-led airstrikes have added to the chaos. For more on the Saudi stake in all this, we're joined by Thomas Lippman. He's an expert on Saudi Arabia at the Middle East Institute and he joins us from here in Washington.
WERTHEIMER: This campaign has been portrayed as a proxy war between Saudi Arabia and Iran. Is that accurate, do you think?