1-Reza Valizadeh,blogger and journalist, was arrested because he published information about Ahmadnejad's security team's expensive dogs. He wrote about 4 dogs.Each cost 150000 dollars.
2-He was arrested and in jail he wrote another post where he praised the idea to buy such dogs. He added that some misused the information. He also erased his post about expensive dogs.
Conclusion: In Iran,political prisoners used to appear in TV to "confess and repent".Some were forced to write the letters. It is interesting that confession and repentence exist for any taste!Bloggers do not need to come to Tv or write letters!They just wrote new posts!