Sorry for the late report on the interview as I was on a business trip, but here it is.... Better late than never right?
The interview was on August 30th at 10am. My wife arrived at the US Embassy at 6:50am and got #7 from the information booth. The Consulate opened at 8am. She went into the "interview" room and waited until they called her number to line #7 to turn in her paper works to a Vietnamese lady who asked her:
• Who's your petitioner?
• What's your husband's DoB?
• What's your date of marriage?
• How many times has he visited you?
• What are the dates?
• Where are the airplane ticket stubs?
• What does your husband do?
My wife's comment on the lady was that she was extremely rude. She felt like she was treated like "dirts." I told my wife that being in a "customer service" oriented field can give people a lot of stress. That made her feel better.
My wife waited until 10:25am, then she got called to booth #15 of which she noticed gave out 2 blues before her. So she was a bit nervous.
The CO asked my wife:
• How did you and your husband meet?
• Did anyone introduce you?
• What does your husband do?
• When and how did he come to the US?
• Are you a communist?
• Do you belong to a communist party?
He asked my wife for communication evident, and my wife gave him about 100 pages of Skype call logs and emails. He didn't even look at them and just returned them back. He gave her a pink slip and asked her to come back at 4pm on September 5th to pick up her visa at booth #11. He didn't ask to see any pictures (my wife brought about 300 pictures.) In total, less than 20 questions were asked to which my wife gave all clear and concise answer.
My wife said the CO and the Vietnamese lady who interviewed her were very friendly and they smiled a lot.
My wife came back to pick up the Visa September 5th. They called people by their Last name to turn in the Pink slips at each specific booth. My wife turned her in at booth #11 and waited until her name was called. The Vietnamese lady told my wife to double check her name, DoB, etc... on the Visa. She told my wife to read the instructions carefully and to not open a package. She also reminded my wife to carry all the paper works with her instead of putting them in the checked in luggage.
Both of us are very relieved that she got her Visa. Next step, PoE and AOS .
Oh, I almost forgot; I got a SMS on my cellphone at 10:50am that said "Em rot roi" which roughly translate "I didn't pass." My heart was literally in my throat. So I called her up and tried to comfort her by saying "It's ok, honey. Don't feel bad. What does the blue slip say? What do we need to do? Stay calm, etc..." She laughed hysterically and said "I'm just kidding. I passed." I laughed so hard.
Anyways, from the bottom of my heart, I would like to thank everyone for your help.