Rolleiv Solholm writes in the Norway Post:
The Oslo Police have over the past three years investigated 41 cases of aggravated sexual assault, which resulted in rape. All of them were carried out by non-western immigrants to Norway. .......... Most of the rapists have a Kurdish or African background, NRK reports.[Immigrants behind most cases of aggravated sexual assault , Apr. 17, 2009]
It would clearly make sense for all immigrants to developed countries to be required to to purchase bonds that would indemnify victims of their criminal activities. I suspect the reported rapes are only the tip of a rather large iceberg.
Rape is not the act of an immigrant that loves their new homeland-but someone who simply doesn't belong there in the first place. Norway is a wealthy country and could easily afford to generous settlements to resettle those who want to leave for any reason before tragedies like this happen.