Pakistan's Economic Monster - The Tarbela Dam

Is this writer crying wolf? Any experts here who can shed more light on this? Also, if someone can tell me if the silt can be removed or dealt with more effectively. How do other big dams like the Three River Gorge etc deal with this?

Pakistan's cup of political woes is brimming. Lurking behind is a less obvious and closely guarded economic monster threatening to garrote Pakistan — the rest of the world better watch out for flailing nuclear arms. I am not crying wolf: