Warimu Gachenga, Elderly Slum Resident - 'Even Buying Soap Is a Problem'

[IRIN]Nairobi -Wairimu Gachenga, 70, lives in Nairobi's Korogocho slum and looks after the two orphan children of her late daughter. Once a week, a group of grandmothers from the area get together to practice self-defence techniques after one of them was raped in 2007.