https://www.dailymail.co.uk/news/article-10161205/Heather-Mack-arrested-moments-landing-US.html

Read the following article. What are your thoughts on the circumstances surrounding the United States arresting this individual when she returned after serving a sentence for the crime committed in another country? Are there special considerations? Should this be allowable? Are U.S. prosecutors guilty of essentially saying the country she committed the crime in has an inferior justice system? Do they have the right to "make up for this"?