baker, a marine veteran and surgeon who served 30 years in the military in san francisco. hundreds of people gathered for a ceremony at the national cemetery in the presidio. the congresswoman, nancyid, we all owe a debt of gratitude for the sacrifice of u.s. service members who lost their lives in service. among the attendees, a man who serves in the u.s. army who said he lost friends in afghanistan and iraq, and that for him, memorial day is a very deep meaning. >> right now, i'm an assignment where i work at the defense pow mia accounting agency, where we search for missing and conduct, conduct investigations and recover their remains to bring back to the u.s. because the united states has made a promise to never leave anyone behind. >> and before that special ceremony, boy scouts from around the bay area placed about 30,000 flags on the graves there. at the presidio. >> dramatic video of a united airlines plane catching fire on the tarmac at chicago's o'hare international airport. this video was taken from inside the airbus jet, showing dark smoke coming from one of the wings. the plane was scheduled to depart for seattle, but instead the passengers had to be taken off the pla