CNN: Nearly 18 million passports are due to expire in 2017.
Nearly 49 million passports are set to expire within the next three years, and government officials are warning there will be an flood of renewal requests through 2018.
As a result, nearly 18 million passports were issued in 2007 alone, and since passports are only good for 10 years, all of these will soon be up for renewal.
