We've been hearing a lot about bitcoin recently. It may be difficult to understand exactly what it is, and if you should buy it. 4 in Your Corner's financial expert James Gallagher, of Waterstone Financial is breaking it down for us. He says bitcoin started in 2009 and has has been growing ever since then. It is a much safer way to store data and the code has never been hacked. It has been growing partly because it was outside of banks, outside of taxes, not tied to any company or government.