Obama Calls for International Fight against Violent Extremism

On the final day of his summit on violent extremism, President Obama called on leaders from 60 nations to expand human rights, religious tolerance and peaceful dialogue. "When people are oppressed and human rights are denied, particularly along sectarian lines or ethnic lines, when dissent is silenced, it feeds violent extremism. It creates an environment that is ripe for terrorists to exploit."

Michael Crowley is senior foreign affairs correspondent for Politico.