By John Solomon
How the government's punishing of the exposure of official wrongdoing can linger for years
Gunmen shot dead a woman working on U.N.-backed polio vaccination efforts and her driver in northwestern Pakistan on Wednesday, officials said, raising to eight the number of people killed in the past 48 hours who were part of the immunization drive.
Gunmen attacked two other polio teams in Charsadda and one in the town of Nowshera, but no one was hurt in those attacks, he said.
Pakistan: 8 working on polio vaccinations slain in 48 hours →
