(Reuters) – Russia’s justice ministry on Friday added opposition activist Vladimir Kara-Murza to a list of “foreign agents”, which means he is subject to stringent financial reporting requirements and must preface anything he publishes with a disclaimer. Leonid Volkov, an ally of Kremlin critic Alexei Navalny, is also now on the list, the ministry announced on its website, saying both were Ukrainian agents. Critics say the listings are designed to stifle dissent. (Reporting by David Ljunggren)