" Mr. Carney said the Secret Service and the White House were following their normal mail-processing procedures, which include screening letters and sending suspicious items to a remote location for "more intense testing.

WSJ: Man Is Arrested in Ricin Scare

Earlier Thursday, Nair questioned Botha over delays in processing records from phones found in Pistorius' house following the killing of Steenkamp, a 29-year-old model and budding reality TV contestant.

NPR: Top Detective Appointed New Pistorius Investigator

Under heavy pressure from unions to rule as it did, the administration made its decision following a Labor Department assessment that public sector work, from cleaning streets to processing government forms, qualified as work under the Fair Labor Standards Act.

CNN: AllPolitics - States Must Pay Minimum Wage For Workfare