Does it set a good example to pardon someone who leaked classified information and endangered national security (i.e. treason)? Possibly. I would pardon them only if they had whistleblower status--i.e. the leaked programs were illegal.
Morally, perhaps we should wait to see whether the programs are ruled illegal before deciding to ask for a pardon. So far the administration and Congress (two out of three branches) have maintained that they are legal.
Politically, the administration would not want to undermine their talking points--that the programs were legal--by giving implicit whistleblower status to the leaker, thereby implying they were illegal after all.
Morally, perhaps we should wait to see whether the programs are ruled illegal before deciding to ask for a pardon. So far the administration and Congress (two out of three branches) have maintained that they are legal.
Politically, the administration would not want to undermine their talking points--that the programs were legal--by giving implicit whistleblower status to the leaker, thereby implying they were illegal after all.