It might have been seen as hypocritical because he claimed that the Soviets did not use armed people and weapons during the uprising and he wanted for Lithuanians to come back to the Soviets voluntarily. He did threaten with weapons and war, but it would be hypocritical to use it since he claimed that they were not aggressive.
Harappan Civilization's writing has never been decoded. Harappan Civilization is a part of the Indus Valley Civilization. The languages of the Harappan Civilization belong to the Bronze Age and they are still today a mystery. This language is totally unattested to any source that is readable. This is one mystery that is yet to be solved.