Some 2,000 National Guard troops and 1,000 police officers have been deployed to enforce a 10 p.m. to 5 a.m. curfew. Riots Monday left at least 20 officers injured and several buildings destroyed.
Shinzo Abe will have a summit with President Obama, sign a security agreement and make a historic address to a joint meeting of Congress during his weeklong visit.
Iraq's prime minister is trying to drum up military support against the self-proclaimed Islamic State, which controls parts of his country. He is also looking for billions of dollars in loans.
Three of the Blackwater security guards were found guilty of manslaughter and voluntary manslaughter, while a fourth was convicted of first-degree murder.
The site was created after Arab-American advocacy groups began to hear from U.S. citizens stuck in Yemen. The groups are pushing the U.S. government to step in and help those who are unable to leave.
If a final agreement is reached, crippling sanctions on Iran's oil industry could be lifted. But the oil sector faces a number of challenges before ramping up production.
Iraqi flags are flying over government buildings again, one month into a major offensive to reclaim the city from fighters with the self-proclaimed Islamic State.
President Obama signed a new executive order that will allow the administration to freeze the assets of any individual or group involved in "malicious" cyberattacks.
Some of Washington's closest allies have signed on to a new Asian development bank. The U.S. opposes the bank, in part, because it presents a challenge to American influence in the Asia region.