As a former AP high school student I read with curiosity this Washington Post article about AP History teachers at one school that are putting a serious damper on the resources their students can utilize for their assignments and exams.  

Which is the greater danger?  The danger that some students will opt for the easy way out through plagiarism, or the danger that students will not be taught how to critically evaluate sources and material?  I'm not sure who to be most disappointed in - students who have through their lack of initiative caused their teachers to try and eliminate the possibility for plagiarism or shoddy scholarship, the teachers who are limiting not just their student but themselves, or the students who have the ability and desire to grapple with material beyond the narrow scope of a textbook?  

I'm pretty sure everyone loses out in this scenario.