Modern day slavery does exist. 

Despite our belief to the contrary, modern day slavery does exist; albeit as an discreet operation by unscrupulous, modern-day slavers who kidnap young men and spirit them away to clandestine slave-markets in the Middle-East, Africa and parts of Asia where there is great demand for young, white, male slaves.

Here we see such an operation in action. Tonight, the slavers have been most successful and they have "lifted" four recruits from local bars and the darkened streets.

Stripped naked and packaged for export, they are being loaded onto the slavers' vehicle at the start of the first leg of their journey to a slave-market in the Middle-East.

From what we can see of the new slaves, it's clear they possess great buyers' appeal and they will return a handsome profit to the slavers for their odious night's work. 

Artwork by Herodotus: the text is mine.