President Obama has announced several rounds of economic sanctions on Moscow, acting with European allies. Here are answers to some simple questions about sanction specifics.
Gas prices in the US have fallen to the lowest level in 100 days, and drivers have strong US energy production to thank. Analysts say the domestic oil boom is softening the impact that turmoil in Iraq and Ukraine would otherwise have on prices at the pump.
Rival militias are battling for control of Libya's international airport, which is closed after rocket fire destroyed most of the planes on the ground.
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.