If you're thinking of heading to Boulder to watch a University of Colorado football practice session, you can pretty much forget it. Coach Dan Hawkins has closed all practice sessions to the public, saying too much detailed information on strategy and injuries finds its way to the Internet, writes Boulder'sÂ Daily Camera. Still, there are exceptions. The 10 a.m. scrimmage tomorrow is still open, along with another on the afternoon of April 17. The April 25 spring game will also remain open to the public.