CAIRO — Three letters written by prominent Egyptians — two from inside jail — are making the rounds on social media, punctuating the fallout of government crackdowns in a politically charged climate that appears far from reconciliation, despite calls to end polarization on the third anniversary of the revolution.

One of two letters released from jail was written by activist Alaa Abdel Fattah in late December inside Tora prison. It reappeared this week after being translated into English and shared on social media. The second was written by Al Jazeera journalist Abdullah Elshamy, jailed for five months without charges.

The third letter was written by Emad Shahin, a scholar of political Islam, who is now being charged along with ousted President Mohammed Morsi and Muslim Brotherhood leaders with conspiring to undermine national security.

Fattah and Shahin have both been critical of the military leaders who ousted Morsi in July and of Morsi and the Brotherhood while they were in power. Elshamy was one of hundreds rounded up Aug. 14 in a bloody crackdown on sit-ins protesting Morsi’s ouster that left up to 1,000 dead. He is one of several Al Jazeera journalists behind bars in Egypt.