Sorry, I probably wasn't clear in my original question. Since, I don't plan to send the originals US passports with the application (will send them after the application is approved) -- can I send the original PIO card of my kid later as well OR should I send the original PIO card with the application (even if I'm not including the original US passports)?
Based on the link and quote provided by akgarg it is clear that you HAVE to send the PIO card only at the later stage (along with original US passports). So there should be no debate left on "Can you send the original PIO card later?" since "You have to send the PIO card later". You were very clear in your original question and the response from akgarg was also very clear but I suppose you did not interpret his answer/quote correctly. I hope this post eliminates the confusion .