I don't think any Islamic leader has opposed Jehad at all. Which by itself shows they silently approve it.
Every religion did away with bad things in its thought. Did we ALL NOT join together and fight against Sati...I reallly don't understand why even educated Muslims can't talk boldly against Jehad.
Its a shame that today Islam's progress is measured by geograhy and number of followers. Islam has several primitive thoughts that need to be changed