In the current tensions with the Islamic World, pundits bandy about received wisdom that in fact is often ignorance. Here are a few examples.
1) The solution of radical Islam must come from within Islam.
Perhaps it could. It would be nice to see the advice of General Sisi of Egypt [1] take root among the Islamic street. It would have been nice had the Arab Spring resulted in constitutional republics from North Africa to Syria. It would be nice if an all-Muslim force took on and defeated the Islamic State. It would be nice if Iran suddenly stopped stonings and Saudi Arabia ceased public whippings. It would be nice if Muslims dropped the death penalty for apostates.
Unfortunately, there is no reason to believe that any of these scenarios is soon likely. Nor is there much historical support for autocracies and totalitarian belief systems collapsing entirely from within. Hitler was popular enough among Germans until the disaster of Stalingrad [2]. The Soviet Union only imploded under the pressures of the Cold War [3]. Mussolini was a popular dictator — until Italy’s losses in World War II eroded his support. The Japanese emperor only was willing to end the rule of his militarists when Tokyo went up in flames and the U.S. threatened more Hiroshimas. Only the collapse of the Soviet Union and its bloc pulled the plug on the global terrorism of the 1980s.