Secretary MICHAEL CHERTOFF (Department of Homeland Security): We have asked state and local leaders and transportation officials to increase their protective measures including additional law enforcement, police, bomb-detecting canine teams, increased video surveillance and increased numbers of inspection of trash receptacles and other storage areas.

NPR: New York, Los Angeles Step Up Security

As the chart shows, the amount of potentially weapons-usable nuclear material either highly enriched uranium or separated plutonium under inspection has increased far faster than the funds available for safeguarding it.

ECONOMIST: Troubling flaws in the world's nuclear safeguards

During an inspection in March, inspectors found council arrangements meant some children were being put at increased risk of harm.

BBC: Cheshire East Children's Services 'inadequate'