DMK hardens its stand, party chief Karunanidhi threatens the UPA of pulling out support if the Centre did not take steps to incorporate desired amendments to the US-sponsored resolution against Sri Lanka. But is this mere posturing for political gains or is DMK serious about its demands?<br /><br />For more log on to http://www.newsx.com<br />Follow NewsX on Facebook at https://www.facebook.com/Newsxonline
