This whole project could be fruitful and dredge up even more dirt on Nixon.
Perhaps some of them might dredge up some outrage over the message behind what Karzai did to the United States yesterday.
late 15c., in Scottish dreg-boat "boat for dredging," perhaps ultimately from root of drag (possibly via Middle Dutch dregghe "drag-net"). The verb is attested from c.1500 in Scottish. Related: Dredged; dredging.
To find or discover by effort and persistence: Let's dredge up more dirt on the candidate (1950s+)
(Job 24:6). See CORN.