One of the more revealing exchanges occurred on April 20, 2001.

It was a revealing exchange, in more ways than one.

He's certain this will be the most revealing exchange they'll have.

It also offers a revealing exchange involving Pope Pius XII, who some historians say did not use his influence to halt the killing of Jews.

The exchange, short but revealing, showed how Renney has lightened up.

Seldom had any of them heard such a revealing exchange between the God Emperor and his most immediate aides.

Some of their most revealing exchanges occur when the two locked horns about Hughes's work, and neither chose to back down.

Playing a few seconds of the conversation, it reduced a revealing exchange to the kind of skewed news snippet that may be the media campaign's true defining force.

This revealing exchange took place on BBC News last night:

Some of the most revealing exchanges, however, have occurred as members of the panels grilled each other about legislative procedures and the broader questions of military spending.