"But to do it with millions is a logistical nightmare."

Running a business in an airport, though, can be a logistical nightmare.

Enforcement of such a system would be a logistical nightmare.

Even meeting with some of the key leaders has been a logistical nightmare.

"The next 36 hours are going to be a logistical nightmare," he said.

The process can be a logistical nightmare if one of the children is sick.

The mountains may be beautiful, but they create logistical nightmares.

For a moment, the logistical nightmare of putting together a 50-game season in 12 weeks did not seem so daunting.

Such a project would seem to pose a logistical nightmare, particularly given the few short weeks that officials have to bring it together.

Controlling Russia was a logistical nightmare in and of itself.