The photographs above correspond to Brook's three pieces published by Slate. The items labeled "Dispatch 1" are associated to his 9/08 piece, "Dispatch 2" to 9/09, and "Dispatch 3" to 9/10.
In 1994, Mohamed Atta traveled to Istanbul with a student group and continued onward to visit Dittmar Machule in northern Syria, where the professor was doing fieldwork on a Bronze Age village under excavation. But Atta found himself more interested in the traditional urbanism of the nearest major city, Aleppo. Atta was hardly the first student of Middle Eastern architecture drawn to Aleppo. Along with Fez in Morocco and Sana'a in Yemen, Aleppo is considered among the best-preserved cities in the Arab world.
JARAMANA, Syria -- Hasem Abed is thinking about going back to Iraq.
The small-time auto trader, 32, left Diyala earlier this year after members of a Shia militia destroyed his house.
He says this town outside Damascus has been more secure, but he has run out of money and has been unable to find work. He is thinking of trying his luck in Baghdad.
Hassam Abdul Rahman might join him. Life in Iraq, the 42-year-old mechanical engineer says, "is very bad." But he, too, has exhausted his savings in Syria.
WASHINGTON -- After a stranger snapped her photograph as she entered the Green Zone, Tina Raad's family begged her to get out of Iraq.
At first, she resisted. The Iraqi woman had sought work with the U.S. Agency for International Development in Baghdad because she wanted to join in the reconstruction of her country.
But in the eyes of Iraqi insurgents, such collaboration made her a traitor. Changing her dress, varying the route she took to work and altering her hours had not stopped their threats. When her mother and three siblings fled Iraq, she relented.
DAMASCUS, Syria -- Adnan al-Sharafy sees a few obstacles holding up the return of Iraqi refugees to their home country: the U.S. military, the U.N. High Commissioner for Refugees and the news media.
Sharify, an official at the Iraqi Embassy here in Syria, helped to organize government-sponsored bus trips at the end of last year that he says carried 420 Iraqi families back to Baghdad. (The United Nations estimates the Iraqi population here at 1.2 million.)
More free rides home are planned, Sharify says. But finding takers is likely to remain a challenge.
DOUMA, Syria - Mustafa Hamad Rassoul doesn't see how his family can survive.
Back in Baghdad, the 55-year-old Iraqi Kurd says, the money he made running a clothing shop was more than enough to house and feed his two wives and 10 children. But here in Syria, where he came last year after being threatened by the Mahdi Army, the food and cash assistance his family receives doesn't last the month.
Rassoul blames the United States.
DAMASCUS, Syria -- These refugees aren't in camps. And that's making it more difficult for aid workers to address their growing needs.
The great majority of Iraqis who have come to Syria have settled in and around the capital. Most have disappeared into the cosmopolitan population of this Middle Eastern hub; many are intentionally keeping their profiles low, for fear of being caught, detained, and sent back to Iraq.
The pattern is the same in Jordan, Lebanon and other Iraqi neighbors.
SAIDA ZAINAB, Syria - As a Sunni Muslim married to a Shia, Hamid Al Dulayme was threatened by both sides in Baghdad. When militia members broke into his house in 2005, he fled Iraq.
In Syria, he says, he has left sectarian conflict behind.
"The best thing here is there is no problem between different groups," Dulayme says.
When Iraqis began pouring into Syria two and a half years ago, authorities here feared that they would bring their country's sectarian divide with them.
AMMAN, Jordan -- Najim Abid Hajwal thought he would be back in Baghdad by now.
The 49-year-old businessman fled Iraq after a worker in one of his factories warned that his name had appeared on a local hit list. He needed no convincing: By then, he says, two of his sons had narrowly escaped kidnappers, and a brother and a nephew had been shot to death.
Still, he expected the exile to be brief. Packing up his wife and their seven children, he imagined a sojourn lasting weeks.
That was four years ago.
Imran Riza, the representative in Amman for the U.N. High Commissioner for Refugees, discusses the challenges facing Iraqis in Jordan, and the ways in which they differ from more traditional refugees.
Matthew Hay Brown, for the Pulitzer Center
The news today that nearly 100 Sudanese refugees in Iraq now are headed to Romania highlights the plight of a particularly vulnerable group: Those who were already refugees in Iraq when the war triggered the current crisis.