Welcome to the new reality of cold, hard choices in Egypt, and the consequences of democracy in regions where radicalism thrives. In order to stay ahead of the crisis in Egypt, the Obama administration yesterday signaled that it supports the participation of the Muslim Brotherhood in Egyptian politics as long as they renounce violence and commit to democracy: The Obama administration said for the first time that it supports a role for groups such as the Muslim Brotherhood, a banned Islamist organization, in a reformed Egyptian government. The organization must reject violence and recognize democratic goals if the U.S. is...