South Korean activists Saturday promised to draw one million protesters nationwide in the biggest anti-US beef rallies so far, warning they would use young Christians as “human shields” against riot police. Rallies in Seoul and several other cities were due to start at 5:00 pm (0800 GMT) as campaigners bid to keep alive a two-month series of sometimes violent protests which have piled pressure on President Lee Myung-bak’s new government. Full Story