GABORNE, Botswana: Botswana’s new president, Mokgweetsi Masisi, used his inauguration speech on Sunday to vow to tackle youth unemployment in one of Africa’s most stable countries.The swearing-in ceremony in parliament came after Ian Khama stepped down having completed the constitutional maximum of 10 years in office.As the vice president, Masisi took over automatically, and he is likely to secure a further five-year term in elections in October 2019 when the ruling Botswana Democratic...