Aled:
Depends what they ask for, if copies or originals. If they ask for copies, I'll make color copies, but I read on the USCIS website regarding submitting paperwork, its not returned to you until later...but I really am hesitant about giving my ids...I dont want them misplaced or lost.
Heres what it says exactly:
At the discretion of the officer, original documents may still be required in individual cases. Please be advised that USCIS no longer returns original documents submitted with the exception of Certificates of Naturalization, Forms I-551, Permanent Resident Card, Forms I-94, Arrival/Departure Document, valid passports, or those specifically requested by the officer. Such documents will be returned when they are no longer needed.
Heres the link:
http://www.uscis.gov/portal/site/uscis/menuitem.5af9bb95919f35e66f614176543f6d1a/?vgnextchannel=fe529c7755cb9010VgnVCM10000045f3d6a1RCRD&vgnextoid=ff053d146a7ee010VgnVCM1000000ecd190aRCRD