Criminal records have always been a barrier for visitors to USA. Now UK has set up similar barrier. Our new visa waiver scheme asks anyone applying - have you been convicted of a crime in last 12 months? Visitors who've travelled to UK fine until recently are now rejected https://www.wsj.com/lifestyle/travel/new-travel-requirements-snag-visitors-to-the-u-k-50f75df5?mod=hp_featst_pos4