A student protester uses an umbrella to block pepper spray from riot police as thousands of protesters surround the government headquarters in Hong Kong Sunday, Sept. 28, 2014. (AP Photo/Wally Santana)
A student protester uses an umbrella to block pepper spray from riot police as thousands of protesters surround the government headquarters in Hong Kong Sunday, Sept. 28, 2014. (AP Photo/Wally Santana) AP
A student protester uses an umbrella to block pepper spray from riot police as thousands of protesters surround the government headquarters in Hong Kong Sunday, Sept. 28, 2014. (AP Photo/Wally Santana) AP