A woman with an estelada or Catalan independence flag on her back hugs a man during the Catalan National Day in Barcelona, Spain, Monday Sept. 11, 2017. Hundreds of thousands are expected to rally in ... - Easy Branches

A woman with an estelada or Catalan independence flag on her back hugs a man during the Catalan National Day in Barcelona, Spain, Monday Sept. 11, 2017. Hundreds of thousands are expected to rally in ...

A woman with an estelada or Catalan independence flag on her back hugs a man during the Catalan National Day in Barcelona, Spain, Monday Sept. 11, 2017. Hundreds of thousands are expected to rally in Barcelona to show support for an independent Catalan nation and the right to vote in a controversial referendum that has been banned by Spain. (AP Photo/Francisco Seco)