News Summary: Mexican telecom dispute turns ugly

AT STAKE: A dispute in Mexico is over control of hundreds of millions of dollars' worth of wireless frequencies.

THE PARTIES: Mexico's government and one of the country's most influential media companies.

THE FIGHT: The dispute has erupted into an ugly, personal feud. The head of broadcaster MVS Communications and some of the top officials in President Felipe Calderon's administration accused each other of lying about the government's reason for withdrawing MVS's right to frequencies in a bandwidth used by the newest generation of mobile devices.