Putin Labels Former Prime Minister Turned Critic Kasyanov a Foreign Agent
- Mikhail Kasyanov, Putin's first prime minister, added to Russia's "foreign agent" list
- Kasyanov later became a prominent Putin opponent
- Designation allows discrediting of political opponents and independent media
- Kasyanov served as prime minister 2000-2004, oversaw economic reforms
- Kasyanov left Russia in 2022 after opposing Ukraine invasion