It's not less possible, you're just more ignorant of it than America is.

I'm sure even the Netherlands has some kind of mechanism in place to allow this if a sufficiently powerful court order is in place.

Feel free to drop the 'even' in that sentence. Just say the magic words 'child pornography' and the judge will go and install that bug himself. Tor has a very bad reputation in The Netherlands, I think just saying it's a Tor node might be enough reason for a judge to sign off on an eaves-dropping warrant.

Hold off on the conclusion-jumping = 'possibly consistent with X' is a long way from 'proof of X'.