The Rundown -- April 23

# Atlantic cites Martins Zvaners on restrictions to RFE/RL in Russia

# U.S. says Russia building up forces by Ukraine border

# Gazprom says Kyiv owes it $174 million for gas supplies to eastern Ukraine

# Mounting frustration in Kyiv-controlled eastern Ukraine, particularly Kharkiv

# Ukraine's large Greek community not happy with Tsipras reaching out to Moscow

# "Wladimir Klitschko Seeks Recognition of Himself and Ukraine" - Joe Depaolo, New York Times

# European regulators charge Gazprom with abusing its dominance in natural gas markets

# Space station workers start hunger strike after Putin doesn't come through on promise

# Lavrov says IS is greatest threat to Russia

# The Russian mom taking on the country's gay "propaganda" law

Iran

# Ramadi residents who have fled face harrowing choice: return now or wait with nowhere to go

# A profile on the physics teacher who may now be running IS

# Captured IS leader explains how the group amasses its fortune

# Taliban announce spring offensive in Afghanistan

# Afghanistan tries to strike balance in escalating Iran-Saudi rivalry

# Sharif to visit Saudi Arabia today

# "China Loves Pakistan … but Most Chinese Don’t" - Bethany Allen-Ebrahimian, Foreign Policy

# "China-Pakistan Deal Highlights Waning U.S. Influence In Region" - Philip Reeves, NPR

# Human rights lawyer Aliyev sentenced to 7.5 years in prison In Azerbaijan

# Erdogan says Armenia will "insult" Turkey in commemoration ceremony

# Wire-tap scandal threatens stability, democracy in Macedonia