Later, the five men chose to defer entering a plea, a routine practice during military court proceedings.

CNN: 9/11 suspects ignore, disrupt Guantanamo arraignment

"Take your child to work" could become a routine practice rather than a single-day annual event, and college students could spend more time watching and helping scientists and scholars at work rather than just listening to their lectures.

WSJ: What's Wrong With the Teenage Mind?

Moreover, even when such measures are incorporated into trials, translating the results into routine practice is a tricky business.

ECONOMIST: Trial and error