Worrying book on foreign workers having their taxes stolen in Norway

Without buying the book, you can read samples and the book's description says it all.

"Accounts from migrant workers regarding

* Not having their tax deductions passed on to the Norwegian State by their Norwegian employers
* Being double taxed by The Norwegian State and not being refunded over paid taxes
* Having their wages "lost" by their Norwegian employers
* Difficulties accessing health care
* Lack of access to social security benefits when sick or out of work
* British workers finding they fail the Habitual Residency Test in the UK rendering them ineligible for Job Seekers Allowance or health care in their native country after being unable to access healthcare and benefits in Norway"

Why doesn't the mainstream media cover this? I'd like warning if this is what I could expect if I worked abroad.

I found the Stig Arne Jonsson case which has had very little coverage it seems.

How much research do you have to do have a chance of thriving abroad?

EDIT: You only have to look at the adverts here to show people are making a living selling healthcare, banking, business service etc. to foreigners. Once you've factored the cost of buying healthcare in case you're sick abroad (the book contains a copy of an invoice for over £6,000 for a week in a Norwegian hospital for a British worker who was 100% paid up with his Norwegian Social Security contributions ... that didn't matter, it was his "residency" .... tax resident in Norway but not enough to get anything for his social security deductions ... 11%)