BEIJING: China said on Thursday (Jul 10) it had cracked three spying plots, including one in which a public servant was lured by the "seductive beauty" of a foreign agent, urging government workers to remain vigilant against overseas threats. Beijing has stepped up espionage warnings in recent years as relations with the United States and other Western nations have worsened. Its Ministry of State Security (MSS) said Thursday that foreign spooks "have been increasingly active in infiltrating and