Following recent casualties of Cobalt-60 in Delhi, the government has alerted the army about a Chemical Biological Radio and Nuclear (CBRN) threat ahead of Commonwealth Games 2010.Six battalions under Delhi-based 60 and 35 brigades are undergoing the CBRN training in their respective formation and will also have a joint training capsule with Delhi Police. ?Delhi Police is solely responsible and will be fully geared up for the same, but the army also has been asked to be prepared as stan…