the very best jobs in the world -- i have a company called glassdoor.e are one of the largest job sites. we analyze all kinds of data about the job market. the jobs are in computer science and engineering. there are literally hundreds of thousands of open, unfulfilled jobs. these don't have american kids applying for them because they haven't gotten the education. only one out of 10 public schools in the united states even teaches computer science. this is really something that we as a society have to change. now, another part tied to that problem is immigration. so because we cannot find all the computer science and engineering talent in the u.s., we look abroad. we educate a lot of foreigners, of non-u.s. residents. we educate them in computer science. we get them phd's. >> it is a significant revenue stream. >> it is, and still, we make it hard for those people to stay. the interesting image that everybody can grok, is that every time a phd is handed out in the united states to someone who is not an american. a green card should be stapled to it. >>