How reliable is OP's source, i.e.; onlinenews? and who are those 'highly reliable resources'? The question needs answering.
I am not saying that Zardari et al are sinless angels but we have to see where the news is coming from before we make judgments.
Online News is Pakistan's biggest news agency. You can say the Reuters or AFP of Pakistan. IF you pick up any hard copy of newspaper, particularly URDU in Pakistan, the papers are littered with news reports from Online news.