SITTING in a booth in a classic Manhattan diner, Dan Doctoroff, clad in jeans and a short-sleeved shirt, is sipping a diet soda and musing about the city he loves.

• 那是一家典型的曼哈顿餐馆,DanDoctoroff身着牛仔裤和短袖衬衫，一边啜着无糖苏打一边赞美着这座他深爱的城市。