And that visa process can be another load of redtape.
I had to wait ages while the Neb. Dept. of Labor went through all the formalities, checking that local advertising had failed to secure suitable applicants, etc. Then another wait that went to the INS in Washington and then on to the U.S. Embassy in London.
My application was to go straight for permanent residency (the "Green Card") though, so an initial work visa might be simpler. Then again, my application was about 11 years ago, so it may all be different by now anyway.