A Chinese wearing a shirt with slogans printed which reads "Defend Huang Yan island, Demonstrate our national power" stage a rally near a red banner which reads "China's limits and Tolerate!!!" near the Philippines embassy in Beijing, Friday, May 11, 2012. A month-long standoff between China and the Philippines over a South China Sea shoal is snowballing with hints of economic retaliation and sharpening public opinion that are narrowing the space for a negotiated settlement.