for. but in 2015, isis claimed responsibility for the bombing of metro jet flight 9268 which killed all 224 people on board and became the deadliest air disaster in russian history. terroristsment to bring down aircraft to instill fear, disrupt economies and undermine our way of life, and it works, which is why they still see aviation as the crown jewel target in their world. the threat is not diminished. in fact, i am concerned that we are seeing renewed interest on the part of terrorist groups to go after the aviation sector. from bombing aircrafts to attacking airports on the ground as we saw in brussels and istanbul. however, we're not standing on the sidelines. the u.s. government is focused on deterring, detecting and disrupting these threats. that is why in march i made the decision to ban electronic devices larger than a cell phone from the passenger cabins of u.s.-bound commercial flights from the ten airports in the middle east and north africa. i made this call based on