Open arms or closed doors — why do governments celebrate certain migrants but stigmatise others?

Moving to a new country is hard – do you seek out your own diaspora or find a way to blend in and assimilate? Usually it’s a bit a of both, and what governments do can make a big difference to your life. Why do certain migrants get embraced by certain governments — while others are stigmatised, pilloried, even imprisoned? Two accomplished historians join Natasha Mitchell for a Big Ideas on fitting in and feeling like an outsider.