More than 40 years later, a man meets his son.
Ngo Hao, a 65-year-old veteran, was found guilty of calling for peaceful overthrow of the government on his blog.
You can blog about yourself, without mentioning the news. That's pretty much it.
Critics say it's a government attack on citizen journalism
In Vietnam, your blog must be about you, and you only.
The country has been on a tear arresting bloggers, while one who's served five years is starving himself to death behind bars.