The U.S. plans to let people upload passport photos from a phone or computer instead of going to a store, a convenience that raises identity-fraud worries.

• Marco Rubio announced people will soon be able to submit passport photos online rather than visiting CVS, Walgreens, or UPS.
• The big concern is proof of identity — how does the government confirm the photo actually belongs to the person sending it?
• Because passports are for international travel, a weak verification system could be a serious security hole.
• The country already struggles with basic ID checks, so a self-upload system adds risk.

Outlook: The rollout hinges on the verification tech behind it, which has not been explained yet.