MEXICO CITY (Reuters) - Mexican federal police arrested a people smuggler who sneaked illegal immigrants, including Iraqis and Iranians, into the United States, the attorney-general's office said on Wednesday.Police detained Agustin Chan Montoya as he left his home in the city of Mexicali, near the border with California.The attorney-general's office said Chan Montoya was one of the people smugglers most sought by the U.S. Federal Bureau of Investigation.His clients were often "of Asian origin, including Iraqis and Iranians," the attorney-general's office said. He helped them reach Mexicali by plane and then cross into California.Security analysts say the U.S-Mexican border is...