The official reason for the trial and subsequent imprisonment was the use of force by members of the Muslim Brotherhood during protests a year after he took power. However, given that the military, which conducted the trials against Morsi, came to power soon after the protests, it is more likely that the new leaders are just trying to clean up after their coup. Amnesty International has said that the trial was a "sham."
This trial was part of a larger smear campaign against the Muslim Brotherhood. A high level leader of the Brotherhood, Mohammad Badie, received the death sentence in his trials, and the entire organization has been labeled a terrorist organization by the military led government. Additionally, while pursuing charges against Morsi, the military government dropped charges against Mubarak. This demonstrates a total lack of equal application of the law.
I'm not saying that Morsi is a saint or the the Muslim Brotherhood is a perfect organization. However, if Egypt is to ever have a dialogue about the balance of power and the role of religion in government, they must have a civilian government, not a military regime.
What do you think of the sentence against Morsi and the actions taken against the Muslim Brotherhood?
What should the US do or say in response, if anything? What about the larger international community?
Does this signal the end of the Arab Spring?