Politkovskaya investigation "

completed"

but questions remain;

Lavrov: "

No proof"

Iran seeks nukes

On politics, history, and economy, Russian feelings mixed;

Violence returns to Caucasus

Russia eyes the Arctic;

Nuclear smuggling still a challenge

Prosecutor General: Government bribes at $33 billion a year;

Medvedev lampoons U.S. econ policies

Hard-line general side-lined by Medvedev;

Moscow horse-trading in Thailand, seeks jailed tycoon's freedom