Look up the video coverage of Imran Khan's visit to Malala in the hospital, if you're really interested. He condemned the perpetrators of that heinous crime, clearly and explicitly.
And as I mentioned before, it isn't "brave" to have other people pay with their lives, as a consequence for your rhetoric and your actions. If his making harsher statements puts the lives of his party members in Waziristan in jeopardy, I respect him all the more for not risking other people's lives just for political point-scoring. Zardari and Nawaz have absolutely no concern for their people and they repeatedly do these gimmicks. IK, is a different breed of leadership.