The danger, Iraqi analysts and politicians warn, is that excluding Iran’s allies from power could drive them back to the gun.

How can I assume that? The test asked them to define the word decipher, and 24 percent got it wrong. “You can’t believe how ...

A similar proportion of eighth-graders failed to come up with the following sum: 12 + (-4) + 12 + 4 = _______. By the 12th ...

Schools are less likely to offer Latino and Black students early algebra, limiting odds they will get advanced courses and higher-paying jobs.