The issue focused on security at high levels in China's parliament as Prime Minister Wen Jiabao addressed lawmakers for the first time since he took office on Sunday.Mr Wen told lawmakers he would continue to push for reform and boost investment in China's steel industry.Mr Wen also defended what he called China's strong leadership and promised that China would continue to push for progress on international climate change talks.Under China's leadership, China has overtaken the United States as the world's largest investor in renewable energy.President Xi