Dotcom was arrested by New Zealand Police, cooperating with FBI. Copyright is governed by international agreements, one of which is Berne Convention, first signed in 1886. New Zealand and US are Berne Convention signatories.
To be essentially the same, first US would sign Data Protection Directive, then Germany would request FBI to cooperate, and FBI would raid Facebook HQ.
To be essentially the same, first US would sign Data Protection Directive, then Germany would request FBI to cooperate, and FBI would raid Facebook HQ.