rene marsh reports on the red flags. >> reporter: the signs of danger were all around. this also follows a pattern of actions by russian backed separatists. >> reporter: june 13th pro-russian rebels shot down a ukrainian transport plane killing 29 people. june 24th rebels shoot a ukrainian hermit shoot nine. and this week monday, july 14th, a cargo plane shot out of the sky. wednesday, a fighter jet shot down. the next day, flight 17 suffered the same fate. were red flags ignored? malaysia airlines says no. >> the flight path taken by mh17 was approved by the national civil aviations and by the countries whose air space the route passed through.