I currently live outside the US and I recently obtained an L-1 visa. I briefly visited the US after this to inscribe myself at Social Security Office but now I'm back in my homecountry and afte several weeks still no news on Social Secutity Number (SSN). My question: can I move to the US and start working for my US employer without the SSN? Alternatively; can I move to the US and await my SSN there and once I have it start working for my US employer?