“Though the Iraq war is arguably the most significant act of American foreign policy in decades, it is often invisible at home,” writes Damien Cave. Surprise comes through strongly in the New York Times reporter’s diary, about what it’s like to return to America after a tour in Iraq. “Welcome home, I think: Four doses of Britney; not a single mention of Sadr,” he wrote during the first week, after searching in vain for Iraq news on the television in his hotel.