It takes two (Argentina and Uruguay) to tango

The Rio de la Plata divides Argentina and Uruguay.

Argentina and Uruguay united over the tango? I never thought I'd see the day, but now the two countries are petitioning Unesco, the UN cultural heritage organization, to protect tango as the cultural heritage of both. The two countries have historically argued over all things tango, including which side of the Rio Plata tango comes from and where Carlos Gardel was born.

Not quite sure what advantage will come out of Unesco status, but it's always a good thing.
A decision will be made in September.

Maybe Unesco protection will prevent foreigners from distorting tango into nuevo, alternativo, quilombo, or the growing-in-popularity, tango boludo.