I am sorry I end the week with such a strikingly sad picture ... I came across it on my way to work and I was just shocked by the power of this call for help.
The adds are all over the city attached to rails you can easily grip with one hand. The messages (in French and Flemish) read: the hands of under nourished children are not bigger than this. They urgently need medical assistance - Medicens Sans Frontieres