Nigerian President Umaru Yar'Adua (c), flanked by Vice President of Nigeria, Jonathan Goodluck (R), shakes hands with Government Ekpemupolo known as Tompolo (L), commander of the rebel Movement for the Emancipation of the Niger Delta (MEND), during their meeting in Abuja on October 9, 2009. More than 8,000 militants who laid down arms in Nigeria's troubled oil hub have so far been registered but the number could double when the documentation is complete.