It appears the Swedish government in part raided the TKMS-Kockums' Malmo site out of concern that Swedish designed Stirling engine secrets were not being held securely enough. The Local ("Sweden's news in English") May 19, 2014 reports http://www.thelocal.se/20140519/swedes-took-engine-in-raid-on-german-sub-makers .
"Swedes 'took engine' in German sub site raid
- 'Kockums submarine raid may be illegal': lawyer (17 Apr 14)
- 'Baffling' Swedish raid on German sub makers (15 Apr 14)
[Coincidence or not? I published my article http://gentleseas.blogspot.com.au/2014/04/stirling-aip-on-chinese-type-041-yuan.html Intellectual Property, Stirling AIP on Chinese Type 041 Yuan Submarine at 5.31pm, April 8, 2014 Eastern Australian time. In Sweden that was at 9.31am, April 8, 2014. Was the Swedish raid on TKMS-Kockums in Malmo a few hours after my article?]