A firm knock at the door;  "Is Jeff Deck here?"  A tall, muscular fellow squeezed into a tan uniform handed over some photocopied documents, "This is about a sign you vandalized at the Grand Canyon."
Appalled by the man's characterization of the act, Benjamin replied,"We corrected it."
"It was a hundred years old," the ranger said.
"Oh." Benjamin signed that he'd officially received the document.

The National Park Service was not grateful for the correction.The federal government advised that Jeff and Benjamin had "first conspired to vandalize and then vandalized a precious national historic treasure" and very much desired that they return to Arizona to appear in court.

Suddenly the saga of TEAL, the Typo Eradication Advancement League had taken a "bleak twist."  One bad correction had the power to negate hundreds of good ones.  Jeff took down his blog, the website; spoke with several lawyers and deleted the Grand Canyon entry.  They were guilty by their own blogged admission.
Banned from National Park territory, assigned a probation officer and left to pay expenses incurred (including $3,035 in restitution) Benjamin returned to his bookshop job;  Jeff was ordered to post public statements regarding the dangers of correcting typos.  He administers a website www.greattypohunt.com

~ THE GREAT TYPO HUNT / TWO FRIENDS CHANGING THE WORLD ONE CORRECTION AT A TIME.  Crown Publishers, 2010.  Jeff Deck and Benjamin D. Herson.

www.greattypohunt.com  includes typos sent in by readers.