The USCIS has just stamp my Passport as a green card ( my old green card expired and new green card is in the process) so they just stamp my passport for the time being, and at the mean time my Passport is expired and needs to be renewd and if they do not send me my old Passport after giving me the new one. I think I will be in trouble, what should I do ??? It might take about six month to get a new green card as they told me.