Why has Togo changed its constitution?

Togo's parliament has voted for a new constitution which resulted in people taking to the streets in protest. The changes mean, parliament now has the power to elect the President for a single six-year term. It all sounds good in theory, so why are critics concerned? Also why does the United States and the United Nations refer to Guinea Bissau as a 'narco-state'?And the cost of cobalt mining in the DR Congo. Presenter: Audrey Brown Producers: Yvette Twagiramariya, Sunita Nahar, Victor Sylver and Rob Wilson Technical Producer: Jonathan Greer Senior Producer: Karnie Sharp Editors: Andre Lombard and Alice Muthengi