More trickle-down nonsense

With regards to Romney's offshore tax shelter accounts, or for that matter offshore tax shelters for all wealthy individuals, how does "trickle down" economics then work? How can the benefits that are supposed to trickle down to the 99% be expected to occur if the capital is tied up in offshore accounts? How does all of this money sitting offshore, escaping taxation, stimulate economic growth in the U.S.?

It should be asked of Romney to explain how the wealthy create jobs via trickle down economics when trillions of dollars are tucked away offshore. Would love to hear his stammering, nonsensical dodge on this topic. Oh, and I'd remind him the tax rate on the top income bracket is at historic lows.

Source: BusinessInsider.com