Afghanistan: McCain Says Limited U.S. Strikes on Militants in Iraq Are Not Enough --- WASHINGTON — President Obama’s authorization of limited military operations against militants in Iraq is not enough to counter a growing threat to the United States from “the richest, most powerful terrorist organization in history,” Senator John McCain, Republican of Arizona, said on Saturday. -- Speaking by telephone from Vietnam, where he was part of a bipartisan congressional delegation visiting Asia, Mr. McCain said in an interview that Mr. Obama was showing a “fundamental misunderstanding of the threat” presented by the Islamic State in Iraq and Syria, or ISIS, that is “deeply disturbing.” -- “The stated purpose — stated by the president — is to save American lives, not to stop ISIS, not to change the battlefield, not to stop ISIS from moving equipment farther into Syria to destroy the Free Syrian Army,” Mr. McCain said. “Obviously, the president of the United States does not appreciate this is not just a threat to American troops on the ground or even Iraq or Kurdistan. This is a threat to America.”