The city of Jerusalem hosted the largest gathering in its history this week. Monarchs, presidents and prime ministers gathered to speak out against the rise of anti-semitism and to recall the liberation of Auschwitz.
Europe has seen a spike of anti-semitism recently – some even say the face of anti-semitism hasn't been as ugly as it is today, 75 years after the defeat of Nazism.
Anti-semitism has shown a remarkable ability to reinvent itself and to re-emerge time and time again.
One way to prevent this from spiraling out of control is listening to those who survived the horrors of the holocaust. Watch our report here.
We also spoke to a Belgian survivor ahead of the major ceremony on 27 January in Poland. All of this is in State of the Union.