NATO summit: Who will foot the bill for long-term Afghanistan security?

Chen Guangcheng: What's ahead for Chinese dissident now in the US?

7:39 pm ET - Now that Chinese activist Chen Guangcheng has reached the United States, both Beijing and Washington are hoping to put what could have been a tense diplomatic situation behind them.

Obama, G-8: Recovery takes both growth and cutting

5:29 pm ET - Confronting an economic crisis that threatens them all, President Obama and leaders of other world powers on Saturday declared that their governments must both spark growth and cut the debt that has crippled the European continent and put investors worldwide on edge.

As Facebook millionaires party, what future for new shareholders?

11:05 am ET - An expected 'pop' in share prices never came as Facebook went public this week. But Facebook's IPO was a measured affair, lacking in irrational exuberance, and laying the groundwork for the network's main challenge: Turning 'friends' into consumers.

Chen Guangcheng comes to the US, but what about other dissidents?

3:59 pm ET - Chen Guangcheng’s flight to New York Saturday marks a major step in difficult and delicate negotiations between Beijing and Washington. But it also spotlights the difficulty other activists face under a government regime and a system of local authority many view as repressive.

SpaceX mission to space station scrubbed for now

8:59 am ET - SpaceX's first attempt to send its Dragon cargo capsule to the International Space Station ended abruptly Saturday morning when computers aboard the company's Falcon 9 rocket shut off the craft's  engines just after ignition.

Trio charged in planned attacks ahead of NATO summit

2:53 pm ET - Three men accused of making Molotov cocktails had been planning to attack President Barack Obama's campaign headquarters, Mayor Rahm Emanuel's home, and other targets during this weekend's NATO summit, prosecutors said Saturday.

Geraldo Rivera (again) says Trayvon Martin's 'thug wear' got him profiled

2:29 pm ET - Geraldo Rivera insisted again Friday that Trayvon Martin’s hoodie represented a kind of ‘thug wear’ that could have alarmed George Zimmerman, who shot Martin to death. The hoodie debate is not over.

Bomb explodes at school in Italy, killing and wounding students

11:16 am ET - One student, a teenage girl, was killed in the blast; as many as ten others were wounded.  No one has yet claimed responsibility.

With NATO summit, Chicago seeks to avoid repeat of 1968 riots

8:28 am ET - Chicago has ramped up efforts to head off violence at the NATO summit, leading some protesters to say the city has been heavy-handed.  

Facebook IPO stumbles: Why didn't it wow investors? (+video)

5:29 pm ET - The Facebook IPO underwhelmed Friday, closing up only 23 cents. Investors are still debating Facebook's worth: Is it must-own stock or a company with limited growth potential? 

Watch video

• For Facebook IPO, some suitors wary of the big dance (+video)
• Decoder Wire: Facebook IPO: Is co-founder Saverin cheating US out of $100 million in taxes?
• The Monitor's View: Facebook IPO as a measure of social trust
• Opinion: Mark Zuckerberg's IPO challenge: A company that can 'friend' the 99 percent

Appeals court upholds key provision of Voting Rights Act. Supreme Court could loom

7:53 pm ET - A federal court on Friday rejected an Alabama county's argument that a key part of the 1965 Voting Rights act is outdated. That could set the stage for a Supreme Court hearing. 

'Day One': What Mitt Romney's new ad really tells us

6:59 pm ET - Mitt Romney's first TV ad of the general election bypasses the usual personal narrative to give us his agenda for Day 1 in office: the Keystone pipeline, tax reform, and replacing 'Obamacare.'