Summary: <p>President Barack Obama warned Syria on Monday that it could face American military intervention if there were signs it was moving chemical weapons for use. U.N. chief Ban Ki-moon announced plans to attend the Non-Aligned Movement summit in Tehran next week. And German Chancellor Angela Merkel met with French President Francois Hollande in Berlin about how to solve the euro zone financial crisis. David Sanger of The New York Times, Michele Kelemen of NPR and Abderrahim Foukara of Al Jazeera join Diane for analysis of the week's top international news stories.</p>
