International election observers and human rights organizations have levied harsh criticism against Sisi’s government during his presidency.
A political resolution requires a Palestinian state based on the June 4, 1967 borders, with east Jerusalem as its capital, has remained out of reach, Sisi insisted.
Kassem was convicted of libel and slander against a former cabinet minister and verbally assaulting officers at a police station after he was detained, said his lawyer, Nasser Amin.
Leading democracy advocate and publisher Hisham Kassem is arrested in Cairo, raising concerns about the stifling of political opposition in Egypt
Netanyahu thanked Sisi for his remarks, as well as his commitment to a joint investigation of the attack.
Construction by Russia's state-owned energy corporation Rosatom of Egypt's first nuclear plant at El Dabaa is expected to take until at least 2030.
Blinken heads later on Monday to Jerusalem, where he will meet Israeli Prime Minister Benjamin Netanyahu.
Egyptian presidency stated that Sisi "stressed the importance of achieving just and comprehensive peace between Israelis and Palestinians.