What is sci-fi? Science fiction's dirty little secret is that sci-fi is in the eye of the beholder. That said, there are certain guidelines that will help anyone genuinely interested in determining whether a work of fiction is science-y enough to qualify as science fiction. So, some guidelines:
You may need to make an appointment to apply for your passport card; contact your passport office for location-specific information. You'll need to give the passport official the documents you submit as proof of citizenship, but they will be returned to you by mail when your passport is issued. You can have passport photos taken at many big box stores, pharmacies, AAA offices and photo studios. Some post offices also offer this service.
The U.S. Passport Card can be used to enter the United States from Canada, Mexico, the Caribbean, and Bermuda at land border crossings or sea ports-of-entry and is more convenient and less expensive than a passport book. The passport card cannot be used for international travel by air. I think its better to just get a passport. They are good for 10 years so its minimal investment. Also good advice, don't ever lose your passport overseas, keep it safe as its a pain in the ass and possibly a long process to get another one.