Christian Science Monitor: Mexican President Felipe Calderón meets with President Obama at the White House Thursday amid the same frictions that have irritated the bilateral relationship throughout Mr. Calderón's five-year war on Mexico's drug cartels. Despite stepped-up antinarcotics cooperation between the two countries in recent years, the US continues to find Mexico's efforts against the drug-trafficking organizations uncoordinated and undermined by corruption. Horrendous violence has left more than 35,000 Mexicans dead since 2006.