as far as your current job position match with your level and major field of study, there is almost 0 % risk of being rejected at embassy (if not arrested in US for any reason, except traffic violation). let me share my friends experience to you: last year two of my friends went to nepal, with their h1-b approval letter. both of them have masters from US and have nice job, matching with their field and level of study. one of them had record of domestic violation in US, the embassy put his application pending for 45 days. they basically sent his fingerprints to DC to find out nature of crime, and if he is dispensed by court or not. after 45 days he got his h1b stamp. this is the worst case i ve seen so far, but still grated the stamp. the other one had clean record, and was granted stamp within couple hours. the thing is, it is always wise not leave US if you have any bad records (except traffic violation), or if you dont have a right job. and if you are fine with both of them...fly anywhere you want..nobody can stop you. so, chill brother, kahile bro laai politics le polne....kahile h1b le polne...yaar yasto tension naleu......timro tensions haru dekhera runa maan lagchha yaar!!...baru 6 packs beer lyau,,kukhura bhuta farfari....ani tanna khayera masta ghurera suta.....good luck!