developed any method of assessing the value of fencing or how well it integrates into the overall border security system. one thing is clear in the report, the old fencing which is called legacy fencing appears to be very easily defeated. in fact, the gao says in a five-year period from 2010 to 2015, legacy fencing, jake, was breached either cut open, driven over, or tunnelled under nearly 9,000 times. jake? >> drew griffin, thank you so much. coming up, what is north korea sell bratding with parades and fire works? cnn has the only western reporter on the ground in pyonyang. we'll go there live. stay with us. tech: don't let a cracked windshield ruin your plans. trust safelite. with safelite's exclusive "on my way text"... you'll know exactly when we'll be there. giving you more time for what matters most. (team sing) safelite repair, safelite replace.