By 2021, Americans traveling to many countries in Europe will have to “pre-register” online — and pay a fee — as part of a new security system intended to screen visa-free travelers. The new system is designed to strengthen security on folks traveling visa-free to more than two-dozen countries signed up for the program so far. It can all be accomplished online prior to travel with “patience” to navigate the system!!! And a credit card to pay the fee!!!