Hillary Clinton is in town for a big campaign rally in an all-new "South Park" tonight, Wednesday, March 28, 2007 at 10:00 P.M. on Comedy Central. Cartman suspects the new Muslim student is behind a terrorist threat. The clock is ticking as the citizens prepare for Hillary Clinton's big campaign rally. Every minute counts as Cartman uses his own methods to interrogate the suspect. But could the plan to target Hillary Clinton be just the tip of the iceberg?