"Hitchcock popularized the use of the term MacGuffin to describe
an object in a story that superficially drives the plot but ultimately has little to do with what makes the story interesting. Treasure maps, secret formulas, valuable jewels, and bags of narcotics are typical MacGuffins. For example, in "Psycho" the MacGuffin is the $40,000 that Janet Leigh’s character impulsively steals from her employer, causing her to go on the run and check into the off-the-beaten-path Bates Motel. But by the end of the film, most of the audience will remember the $40,000 only dimly if at all."
http://homevideo.about.com/library/weekly/aa080301a.htmUSA Today, Nov 8, 2001:
General: Capturing bin Laden is not part of mission
WASHINGTON — The U.S. combat commander in Afghanistan said Thursday that apprehending Osama bin Laden isn't one of the missions of Operation Enduring Storm.
...
"We have not said that Osama bin Laden is a target of this effort," Franks told reporters at his first Pentagon briefing since the war began a month ago.
http://www.usatoday.com/news/sept11/2001/11/08/pentagon-toll.htmGeorge Bush, March 13, 2002:
"I don't know where he is and I really don't care. It's not that important. It's not our priority."
http://www.pbs.org/weta/washingtonweek/voices/200304/0428span.html