update >>> let's talk more about facebook's big push into digital currencies joining me now is lou kernerou heard the update about what will happen and what will potentially happen on capitol hill today what chlttoday. what do lawmakers know about the cryptocurrency industry and what do they not? what will they be grilling david marcus over? >> this is a complicated topic very few people in the world understand it. starting with what is money. i think few people in congress understand what money is, let alone value, now we're talking cryptocurrency and facebook, their long-term plan is to have libra be decentralized congress has no idea what decentralization is. you know, i think a few things that they're most concerned about, one is, you know, making sure the u.s. dollar continues to be the world currency, the world's reserve. and that's at risk both from libra and from bitcoin that will be the major topic of conversation with marcus >> bitcoin, ether, lite coin are not necessarily tied to the u.s. dollar bubbbblt libra and other stables are tied to the u.s. dollar. how much of this will