Here's an update to the question I had about joining in at an interview. It took awhile to get an answer from the consulate in Kyiv, but they did answer. Hope this is helpful to others here. I will still go with my MIL to the interview this summer when we are there. It might make a difference to the IO to know someone is there.
Thank you for your inquiry of May 12, 2008.
Unfortunately, American Citizens cannot be present at the nonimmigrant
visa interview. You may escort your mother-in-law to the Consular
Section, but you will have to wait for her in our American Citizens
Services area. The best way for you to assist your mother-in-law is to
write a letter of introduction/invitation for her to present during her
visa interview. It should include an explanation of your relationship
with the applicant, what you plan to do during the applicant's visit
and
the length of stay. A copy of your legal status in the U.S. will also
help to establish that the inviting party is in the U.S. (we do see
several applicants who misrepresent that they have children and
relatives in the U.S. just to try to establish a credible purpose of
travel) and that inviting party is in the U.S. legally.
We hope this information will assist you, if you have further questions
please don't hesitate to contact us.
Public Liaison Unit
Consular Section
U.S. Embassy
Kyiv, Ukraine
tel. (380)44 490 - 4422
fax (380)44 486 - 3393
Please visit the Embassy web-site at
http://kyiv.usembassy.gov/ for