PHOENIX (AP) -- A war against typos has gotten two men into trouble with the Feds.
Authorities say the 28-year-olds went around the country this year correcting punctuation and other errors on government and private signs.
Among other things, the two defaced a decades-old, handpainted historical marker at the Grand Canyon.
A National Park Service document says investigators heard about the vandalism from the Typo Eradication Advancement League Web site, which was operated by one of the men.
The two -- one from Virginia and one from Massachusetts -- have now pleaded guilty to conspiracy to vandalize government property.
They were sentenced to a year's probation and are banned from national parks during that time. They were also ordered to pay more than $3,000 to repair the Grand Canyon sign.
(Copyright 2008 by The Associated Press. All Rights Reserved.)