Plagiarism-Detection Tool Creates Legal Quandary

When professors send students' papers to a database, are copyrights violated?

When electronic tools to ferret out student plagiarism hit the market a few years ago, colleges saw them as easy-to-use and affordable. But now some college lawyers and professors are warning that one of the most widely used plagiarism-detection services may be trampling on students' copyrights and privacy. And many campus officials are starting to wonder whether some of the high-tech tools they are using to