Are tensions easing on Ukraine's eastern border - we talk to Dr Nadia Diuk.
Russia has begun moving some of it troops from a region near Ukraine's easter border, according to the Russian Defence Ministry.
Dr Nadia Diuk is a specialist in Soviet Politics and Russian History and joined us from the Washington based think-tank, the "National Endownment for Democracy"...
One of the speakers at this week's Web Summit was Samantha Barry - CNN's head of social media who is originally from Cork. She spoke to Mary about who uses social media well, in this country and in the U.S. and how tweeting has changed everything.