Some experts worry that the program may be used for political purposes.

But some experts worry that expectations for the tests run far ahead of the science.

Some experts worried that many other components of the index were also up.

But some experts worry that he might get bored or frustrated.

Yet some experts worry that the fertility frenzy has gone too far.

Experts worry that asthma is often not diagnosed, particularly in young children.

But a few experts worry that the efficiencies might be slow in coming.

American military experts would worry about this kind of Soviet "breakout."

But some experts also worry that the cuts are being discussed in a vacuum.

Some experts worry that combining the agencies might result in a smaller total budget.