Campaigning kicks off between incumbent President Uhuru Kenyatta and opposition leader Raila Odinga

Close As commuters in the heart of Nairobi hustle past one another on River Road at the end of a recent workday, young men are buying machetes in a hardware shop before boarding a bus. The tools aren’t for clearing brush or making campsites, chopping food or splitting firewood. Peter Mwangi, who runs an electronics shop,…