When U.S. companies don't pay taxes, is it unpatriotic?

The strategy is called "inversion." It's when a U.S.-based company buys or merges with a foreign company and then officially moves its home base so that it can avoid paying U.S. taxes.
 
Nearly 50 companies in the past 10 years have done this, up from only 29 in the previous two decades. And it's perfectly legal.
 
But according to a report by CNNMoney, many opponents of the practice say it is also very unpatriotic and it's  costing the U.S. jobs. Supporters of the strategy blame an outdated and confusing tax code for triggering the exodus. Fixing the code, either short- or long-term, isn't expected to happen any time soon, the report states.

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