The World Health Organizations and UNICEF have warned of Pakistan to eradicate polio by 2012 or face action. WHO and UNICEF, in a memo, censured Pakistan for not eradicating the menace of polio. Besides, the two world bodies have also expressed their reservations on the way the anti-polio drives are conducted in Pakistan. Sources said, the world health organizations could penalize by imposing different restrictions, which could even include ban of Pakistan nationals from entry into the foreign countries.