Roger Cohen Wonders If a Financial Transactions Tax Is Feasible, Someone Has to Tell Him About the UK

NYT columnist Roger Cohen told readers that ideas like a:

"tax on global financial transactions, have been around for years but they're almost impossible to apply."

He wouldn't say this if he was familiar with the United Kingdom. The United Kingdom has been taxing trades of stock for centuries. It raises between 0.2-0.3 percent annually ($30-$40 billion in the United States). There are many other financial transactions taxes in place in other financial markets.

It is not clear what makes Mr. ...