You may wonder how the richest companies in the US keep stuffing their pockets despite a rough economy for the rest of us.  For many of them, the secret is in a trick that sends profits overseas rather than being taxed in the US, even though the companies are based here, helping them pay a fraction of a percentage point on foreign profits through a scheme nicknamed Double Irish.

Shady Shamrock Shenanigans: How The Big Three US Tech Companies Are Stashing Their Overseas Pots O' Gold

Source: Visual Economics