UN under pressure to show it can help end Burundi violence

By Michelle Nichols UNITED NATIONS (Reuters) - When U.N. Security Council envoys flew to Burundi in January to try to end months of violence, the central African country's leader flatly rejected their offer of help and hundreds protested against what they saw as meddling. A month later, with fears of a new ethnic conflict growing a decade after a civil war ended, diplomats say Secretary-General Ban Ki-moon will step up peace efforts by visiting Burundi for talks on Tuesday with President Pierre