we'll talk to rick sherlund. also david rubenstein is our guest host." will be right back. [ male announcer ] at northrop grumman, we know in the cyber world, threats are always evolving. at first we were protecting networks. then, we were protecting the transfer of data. and today it's evolved to infrastructure... ♪ ♪ ...finance... and military missions. we're constantly innovating to advance the front line in the cyber battle, wherever it takes us. that's the value of performance. northrop grumman. >>> the nasdaq hitting 5,000 for the first time since the year 2000. >> segment revenues for cmgi rose 2,150%. >> erin brockovich was tops at the box office last time these levels were here. trip down memory lane and a look ahead coming up. >>> plus are flight systems in danger because of cyber attacks? why air traffic control may be vulnerable to hackers. >>> and legendary investor david rubenstein is finding value in one of this year's hardest-hit industries. >> takes a lot of brains to do what we do looking for a way to make some dough for you. we do it