Nelson Mandela, the man who lead South Africa to end apartheid and served as an inspiration to many around the world, died yesterday at 95. His death is a reminder of how economics can be a tool of oppression as well as a tool of liberation. The government's official jobs numbers are out this morning. With unemployment in the U.S. still over 7 percent but new jobs being created at a slow but steady clip now, there are lots of people applying for virtually every position advertised. Most of these applicants are screened by a computerized "applicant tracking system." But some applicants are being left out and companies are trying to put the human touch back into the screening process.