Abbas is the person who bankrolled the Munich Olympic massacre.

This is the person who pretended to dismantle the terrorist groups who belong to the party he heads and never did.
This is the person whose party he leads says, today, that terror is acceptable.
This is the person who publicly celebrates murderers and calls them heroes.
How can anyone call Abbas a "man of peace?"
Unless, of course, you mean that he is willing to bend over backwards to make peace agreements - with terrorist organizations.
Honestly, the only thing remotely peaceful about Abbas is that he no longer actively encourages direct terror attacks against women and children, even while he still praises those who do. To say that this makes him into a "peacemaker" is not only wrong, but an outrage.
