We have serious doubts about the place and type of operation that our personnel were involved in.

We often see that in this type of primitive operation.

There are serious doubts creeping in about how big this season's crop is going to be.

Mexico was taken by surprise. Nobody anticipated the depth and numbers of the demonstrations. There were many doubts on how to react. . . . It's been difficult for Mexicans to express sympathy and solidarity.

You know as well as I do that counterinsurgency is a very nuanced type of military operation.

I've just had an operation, but nothing too serious.