New Delhi, April 26 -- China's Belt and Road initiative must be green and sustainable, President Xi Jinping said at the opening of a summit on his grand plan on Friday, adding that the massive infrastructure and trade plan should result in "high-quality" growth for everyone. Xi's plan to rebuild the old Silk Road to connect China with Asia, Europe and beyond has become mired in controversy as some partner nations have bemoaned the high cost of infrastructure projects. China has not said exactly how much money will be needed in total, but some independent estimates suggest it will run into several trillion dollars. Beijing has repeatedly said it is not seeking to trap anyone with debt and only has good intentions, and has been looking to use...