Tehreek-e-Insaaf chief Imran Khan on Saturday telephoned MQM Quaid Altaf Hussain, a private TV channel reported. According to the channel, Altaf and Imran exchanged views on national politics. Quoting details, the channel said the two leaders, whose parties had been at odds with each other in the past, talked about Aafia Siddiqui's issue, aftermath of Raymond Davis's release and US drone attacks in Pakistan's tribal belt.