This should also have people concerned:

BBC, 2 May 07: Pakistan Downplays Radioactive Ad
...Officials on Wednesday were keen to reassure the outside world that the latest incident in no way has the makings of another nuclear scandal, and that no radioactive material had been stolen, lost or gone missing....

....This could have been before the creation of Pakistan, and may relate to nuclear material that could not be taken under our charge," Zaheer Ayub Baig, information services director of Pakistan's Nuclear Regulatory Authority, said in a letter to the BBC.

Mr Baig said that the adverts were merely a public awareness campaign to make people aware of the dangers of radiation from material that might have been used in hospitals and industrial plants.

He said the advertising campaign was being expanded.

"There is nothing to worry about," Mr Baig said....