CNN The Lead With Jake Tapper December 12, 2014 21:02:00
Why do the markets keep falling? >> reporter: it's all about oil, jake. plunging oil prices taking a toll on investors today yet again. oil falling almost 4%, settling below 58 a barrel. the international energy agency saying global demand for oil is going to fall next year as supply is growing. what's rattling wall street is the question of what's really behind this drop in oil prices? the concern is because economies in europe and asia are slowing down. and you look at the plunge in oil over the past six months. it's happened really fast making investors very nervous. if you drive, you love ...