The 50th anniversary of the Civil Rights Act is also a chance to note how often peaceful protests for basic freedoms still find traction in many places in the world.
Tunisia has many advantages that set it up well for progress. But the country's future will not be assured without international support. It must fortify a weak economy, combat crime and terrorism, and continue government reforms.
A Supreme Court ruling that further lifts curbs on money in politics is a reminder of why global efforts against corruption must be grass roots.
President Obama's trip to Saudi Arabia comes as a Middle East struggle over 'political Islam' reaches a boiling point. The president can ask his royal hosts what is the best form of government for the world's Muslims.
Turkey's growing middle class took to the streets again on news of the death of a boy injured by police during last year's mass protests. The demonstrations represent a spontaneous uprising for individual freedoms and honest government.