The chancellor of UC Berkeley is drawing criticism for sending a campuswide e-mail that linked a Tucson shooting rampage with Arizona's crackdown on illegal immigrants and the failure of the DREAM Act. In the e-mail, sent Monday, Chancellor Robert J. Birgeneau condemned a "climate in which demonization of others goes unchallenged and hateful speech is tolerated." He continued, postulating on factors that may have motivated Jared Lee Loughner, the alleged gunman in Saturday's shootings, .. : "I believe that it is not a coincidence that this calamity has occurred in a state which has legislated discrimination against undocumented persons." ......