Princess of Wales returns to cancer hospital to personally thank staff

Catherine, Princess of Wales carried out a deeply personal engagement on Tuesday, visiting the London hospital where she underwent cancer treatment to express her gratitude to the staff who supported her over the past year.

​ Catherine, Princess of Wales carried out a deeply personal engagement on Tuesday, visiting the London hospital where she underwent cancer treatment to express her gratitude to the staff who supported her over the past year. Read More Breaking News, Latest News and Videos | CNN