<prompt> Johnston akaberekerwa uye akakurira muOntario, achidzidza ikoko asati anyoresa paHarvard University uye gare gare Cambridge uye Queens mayunivhesiti. Akaenderera mberi achishanda semupurofesa kumasangano akasiyana-siyana epashure-sekondari muCanada, pakupedzisira achishanda semutungamiri wemutemo paYunivhesiti yeWestern Ontario, mukuru weMcGill University, uye mutungamiri weYunivhesiti yeWaterloo. Panguva imwecheteyo, Johnston akazvibatanidza nezvematongerwo enyika uye basa revanhu, kugadzirisa nharo dzezvematongerwo enyika uye kutungamira makomisheni mune zvese zvehurumende nemapurovhinzi, chinzvimbo chake chakakurumbira mumunda iwoyo kuve sachigaro wekubvunzurudza nyaya yeAirbus.  <response>: Mutungamiriri wehurumende 