well above the safe limit prior to that the plane believed to have made a sharp turn west then tease yended. from there, climbed higher again, then changed course doing a u-turn. headed away from the destination. three separate tracking systems went dark. perhaps, they believe someone turned them off. from there, the plane appears to have gone north but they're not sure. it could have gone south as well. these are areas authorities are focusing now. joining me now is michael schmidt, thanks for joining us. and so the most significant piece of news appears to be ascending to 45,000 feet then descending shortly thereafter. walk us through what we think now happened >> as soon as it went off civilian radar it was picked up by malaysian military radar. a high that, for the air is very thin. oxygen masks likely would have come down and passengers could have died. so, you have it go up to 45,000 feet, then drop down to nearly 20,000 feet, then, it goes back up again. so as much as we wish this brought clarity to the situation it just raises questions of who is controlling the plane at this point?