Sir: The ignominious incident of the US raid and the killing of Osama in the heart of Abbottabad is an affront to the capabilities of our security agencies that were caught with their pants down. The entire nation is in a state of shock and its faith in the government and the security forces has been completely shattered. The least that the government can do is immediately sack the top men responsible for this grave blunder. This would at least give a minimum of satisfaction to the beleaguered nation. FAROOQ DAWOOD Via e-mail