Heart of the matter: Which dissent is impermissible in a democracy?

I celebrate student leader Kanhaiya Kumar’s walk back to freedom, his audacious challenge to communal politics, and his passionate espousal of what is most precious in our Constitution – justice, liberty, equality and fraternity. But two of his fellow university students, Anirban Bhattacharya and Umar Khalid, remain in jail, without bail, charged with sedition or crimes against the nation.