Senator Ted Cruz is lobbying to prevent a Chinese company from purchasing a Mexican radio station that broadcasts into the US.He’s uncomfortable with the fact that a Hong Kong-based company wants to buy a radio station near Tijuana because he fears that this might be a front for the Chinese government to pump “propaganda” into his country. The US and Mexico have an agreement in place whereby the Federal Communications Commission (FCC) must approve any deals regarding sales of this sort in Mexico that result in foreign broadcasts being accessible within . . .