What about all the legitimate wire transfers from the US that Mexicans make back to their families. How are the money transfer services supposed to differentiat

What about all the legitimate wire transfers from the US that Mexicans make back to their families. How are the money transfer services supposed to differentiate between ransom money and family support? And even if they could tell the difference, refusing to transfer the money would result in the hostages being killed. What a useless angle on a story!