Senators from both sides of the political divide are displaying an encouraging resolve to break up the country’s biggest banks. Unfortunately, they’re focusing too much on the complexity of big bank operations and ignoring the greater threat entailed in their enormous size.

Red Jahncke is a nationally recognized columnist, who writes about politics and policy. His columns appear in numerous national publications, such as The Wall Street Journal, Bloomberg, USA Today, The Hill, Issues & Insights and National Review as well as many Connecticut newspapers.