The Mexican drug war that has drawn federal troops to northern Mexico, and caught the attention of primetime news producers in the U.S., has caught the eye of Congress, as well: Rep. Loretta Sanchez's Subcommittee on Border, Maritime and Counterterrorism (part of the House Homeland Security Committee) will hold a hearing on the war Thursday at 10 a.m. Witnesses include DHS officials in charge of counternarcotics, intelligence, and immigration. A scary thought: the committee says it will examine "the ramifications of violence spreading onto U.S. soil and what DHS's response will be if that occurs."