 Welcome back to NewsHour. Now, human rights groups in Kenya are warning that further use of the military to restore order on the streets of several cities could worsen the country's fragile security situation. There are calls for an investigation into the killing of up to 30 people who were in crowds protesting against big tax increases, increases the government has since withdrawn. A new wave of protests is planned for later this week. The BBC's Richard Kagoe in Nairobi has been telling me more.