Newly unearthed photos on display for Senegal's Grand Magal

<p>There's a special reason to celebrate in Senegal as millions of Mouride pilgrims come together for the Grand Magal. This year also features an exhibition of rare photos of the order's founder. Also, relatives of the 73 Gambian children killed by toxic cough syrups sue Indian drugmaker Maiden Pharmaceuticals. Finally, Beninese students expanding their tech horizons wow judges with their creations. </p>