It's a setback for Home Minister P Chidambaram. The court has granted permission to Janata Party President Subramaniam Swamy to explain why it is necessary to examine two witnesses to prove Chidambaram's culpability in the 2G spectrum scam. Court admits Subramanian Swamy's plea to examine two witnesses crucial to prove Home Minister P Chidambaram's culpability in the 2G spectrum scam.