Hear from the reporters behind the most expansive leak of tax haven files in history. In October, their investigation revealed the secret deals and hidden assets of more than 330 politicians and high-level public officials in more than 90 countries and territories, including 35 country leaders.

Fisayo Soyombo is a Nigerian investigative journalist and founder of the Foundation for Investigative Journalism. He joins us to discuss his government's attempts to block Twitter and crack down on unflattering reporting.

Ann M. Simmons is Moscow bureau chief for the Wall Street Journal. She has spent over 25 years reporting from Europe, Africa, the Middle East and North America. Prior to WSJ, Ann covered global development for the LA Times, worked as bureau chief in Nairobi and Johannesburg and served in Moscow for Time magazine.