Feb. 11 (UPI) -- Executive director's note: Hyunseung Lee, an escapee from North Korea, sent this letter to the president of Ukraine after watching the documentary at this link: https://youtu.be/1FSgwPU-wVk . Your Excellency, Mr. President and Madam First Lady: After watching Parts 1 and 2 of the Korean documentary MBC PD Notebook, "The Russia-Ukraine War and North Korean Soldiers," I found myself unable to stop crying in front of the screen. In the faces of the young North Korean soldiers --