MEXICO CITY (AP) — President Felipe Calderon tried to rally frustrated Mexicans behind his increasingly bloody drug war Thursday, saying he knows violence has surged under his watch, but arguing that it is the price of confronting powerful and brutal cartels. Calderon delivered his annual state-of-the-nation address two days after his government brought down the third major kingpin in less than a year. But it also came less than two weeks after the massacre of 72 migrants near the U. S...