Yes, the Mark and Morton are VERY related!!!
From FrontPageMag.com:
Mark Halperin’s idea of what is right may be what is Left. He was born in 1965 in Bethesda, Maryland, the red-diaper baby of hard-Left-connected controversial foreign policy specialist Morton Halperin. This fact reveals an entire Left-spin universe in which Mark grew up exposed to his father’s comrades and radical ideas.
Morton Halperin today is Senior Vice President of the left-wing Center for American Progress (CAP) and Director of the Open Society Policy Center established by eccentric billionaire international financier George Soros.
Link:
http://www.frontpagemag.com/Articles/ReadArticle.asp?ID=15511
Ahhhh! So that explains who put the "Dip" in Dipshit . . .
Thanks