This morning the news of Barack Obama shaking Raúl Castro's hand at Nelson Mandela's funeral was all aflutter on Twitter and then picked up very quickly by other media. It's a travesty! It's a symbolic step forward! Etc.
But you know who ignored it entirely? Granma, the Cuban state newspaper. It ran a story about Castro speaking at the funeral, and made no mention of Obama at all. It also had a photo, but emphasized how Raúl Castro was sitting next to Dilma Rousseff.
I checked out Juventud Rebelde, another major Cuban media outlet, which did mention it. Its story made a point, though, of noting how Bill Clinton had shaken Fidel Castro's hand in 2000. And that didn't portend anything.
The divergence is interesting. In the U.S. we see any minor gesture toward Cuba as a sign of great potential policy change, whereas in Cuba there is far less evident. The embargo is still in place after 50 years of far more dramatic events than that, so from the Cuban side I would suspect it is difficult to imagine something like this mattering too much.