Breadcrumbs question

I have Yoast installed and its great for SEO but from my perspective terrible for breadcrumbs. If anyone goes to the following link the title way up top is as such “A Muscular Policy in Syria Will FailInternational Policy Digest”

Ideally I want it to display like this “A Muscular Policy in Syria Will Fail – International Policy Digest”

So essentially how do I place a dash in-between the title and my site’s title? I’ve been plugging away trying to figure out where to do this and it’s totally evading me. Any help would be most appreciated.

Incidentally I suppose once I’m able to put a “-” in there pages and categories will do the same.

http://www.internationalpolicydigest.org/2012/10/05/a-muscular-policy-in-syria-will-fail/