This dispute illustrates how science and politics collide in the arena of trade.

Perhaps above all, the disputes over symbols illustrate how difficult it is for many blacks and many whites to relate to one another.

The current dispute illustrates that controls designed to discourage questionable billings have failed.

The dispute illustrates a continuing issue in the museum world.

The dispute illustrates the fine line that members of Congress walk between serving their constituents and meddling with the regulatory enforcement process.

And the dispute illustrates the murkiness over just who is in charge of the rebuilding effort.

The dispute illustrates what experts know from experience: Hunger is one of the most emotional issues on the nation's social policy agenda.

The dispute illustrates a growing push to mask sensitive data about the nation's industrial base from the prying eyes of potential terrorists.

The disputes of the past two weeks illustrate the lingering difficulties.

The dispute illustrates the passions aroused when the fate of cancer patients gets mixed up in debates over drug prices and doctors' income.