He said, "Rehabilitation is our best assurance against their delivery of a second addicted newborn."

It provides the best assurance that no animal testing is used in any phase of product development by the company, it's laboratories or suppliers.

Keeping our militaries united and prepared is the best assurance that they will not have to be used.

This load of dirt was the best assurance for his escape.

This was the best assurance Gabriel was going to get, like it or not.

The best assurance of a legitimate worker is a familiar face.

"Low inflation is the best assurance of exchange rate stability," he said.

Surely we know, from both economic theory and concrete example, that open competition is the best assurance of consumer satisfaction.

Yet Mexican farmers are so poor that cane is their best assurance of a steady income.