One of the biggest uncertainties is how long he will remain in office.

"But the big uncertainty is the national economy," he warned.

Of course, the other big uncertainty is what humans do.

A bigger uncertainty is the ability of consumers to keep spending.

"The big uncertainty is what are profits going to look like," he said.

The big uncertainty, they quickly add, is the potential for a political backlash in Washington.

The big uncertainty is whether there will be any business for them by then.

A big uncertainty in all this is the possible impact of rising seas.

But the biggest uncertainty is in the 100-year storm criteria followed by the industry.

How far inflation falls later in 2012 remains a big uncertainty.