PTR - January 29, 2015

The Kremlin's chief of staff says corruption poses a direct threat to Russia’s national security - proposing tough measures to tackle the problem; Catching a legal ride in Moscow could prove hard next month - cab drivers are planning to go on strike over low tariffs, saying competition from mobile apps such as Yandex Taxi is driving them off the market; Russian gun maker Kalashnikov slams US plans to manufacture automatic rifles using its brand name - that's after an American arms producer applies to register it as a trademark.