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Following several recent gun attacks in the US, including at a school in Sandy Hook, Connecticut, in 2012, many Americans are nervous about their children's safety at school. Laura Trevelyan was forced to confront the harsh realities of gun culture in the United States when her seven year old took part in a drill simulating the aftermath of a shooting.
In Kenya, illegal hunting of endangered rhinos continues, feeding demand for their horn in the Far East. Natasha Breed meets a former member of a Rhino Security Patrol. He once assisted poachers, but now helps the authorities catch other hunters. But with the temptation of eye-watering prices, how effectively can others be deterred from killing this vanishing species?

Presenter: Tony Grant
Producer: John Murphy

Photo:Alameda Police officers carry a volunteer student with simulated injuries during a school shooting and mass evacuation drill at Lincoln Middle School May 22, 2007 in Alameda, California.
Photo credit:Justin Sullivan/Getty Images