Are you scared of the super-fast, stock-trading robots? Warren Buffett isn't. The Oracle of Omaha recently told CNBC that high-frequency trading "doesn't make a difference if you own stocks for long periods of time." 

In the video below, Motley Fool financial analysts Matt Koppenheffer and David Hanson discuss high-frequency trading and Buffett's bold proclamation. If stock market robots have your blood pressure soaring, this HFT breakdown may be just what the doctor ordered.