I have a friend in Kenya that have apply to nonimmigrant visa to visit me here in the U.S., but have been denied due to no strong family ties, like children, wife etc. that would keep him from not coming back. He present letter from me, his job there and others assuring that he would come back, copy of round trip ticket with his return date (Aug 9 - Aug 31, 2011), and they still denied him a second time. Do any one have any other sugguesting or know someone can assist?