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This undated photo provided by Pam Smith on March 29 2012, shows her son Austin Carroll who tweeted the F-word multiple times while fighting insomnia one night, apparently to show that the expletive would fit almost anywhere in a sentence. Carroll was expelled from Garrett, Ind., high school over his foul-mouthed lapse, even though the word wasn't directed at anyone, and he says the tweets didn't involve his school. Now the 17-year-old is at the center of a debate over how closely school officials may monitor students' online activities when they aren't in class or even on school property, an issue that has frustrated administrators and confounded courts. (AP Photo/courtesy Pam Smith)



