Ruben Navarrette : Make no mistake , a handshake is just a handshake . The president of Mexico has said he will not pay for the border wall that Donald Trump wants to build on his southern border. President Obama 's handshake with Raul Castro is no big deal . Seriously ? He says it does not mean that U.S.-Cuba relations will change for the better . Navarrette : Let 's keep in mind the atrocious human rights record of Cuba .
Ruben Navarrette : Make no mistake , a handshake is just a handshake . The president of Mexico has said he will not pay for the border wall that Donald Trump wants to build on his southern border. President Obama 's handshake with Raul Castro is no big deal . He says it does not mean that U.S.-Cuba relations will change for the better . Navarrette : Let 's keep in mind the atrocious human rights record of Cuba .