The BJP has explained in detail why five of its members walked out of a meeting of a parliamentary committee on the telecom or 2G scam. Yesterday, five senior BJP members of parliament left the Joint Parliamentary Committee (JPC) meeting in protest because the panel has not agreed to summon the Prime Minister and Finance Minister P Chidambaram. They also said that by referring to the committee as "a kangaroo court," Congress members of the same committee had vitiated the atmosphere.