No, that wasn't a terrorist bombing at all, but a simple (or complex) assassination attempt, from TNG "Reunion" where Gowron and Duras compete for power. We never quite learn which one of them did that: the bomb with Romulan components was in the arm of a henchman to Duras, the known Romulan sympathizer, but since the evidence was so damning and Gowron ultimately won the contest, we may just as well suspect he framed Duras. Perhaps he bribed the henchman, perhaps he injected that bomb without the henchman even noticing.
Klingons in general find faceless killings such as poisoning distasteful. But suicide bombing is probably fine and brave and highly honorable. Then again, attacking under cloak is also fine... Although of course the cloak is dropped before firing, which may be because of the demands of honor or because of a technological shortcoming amounting to same.
This one has to do with a TNG movie. Some dates and claims don't add up. Star Trek Insurrection. [..] The Baku settled on the planet in the mid 21st century. Earth was barley warp capable then, and the Federation wasn't founded until about 100 years later. In short, the Baku settled on the planet 100 years before the Federation even existed.
But all of the members of the future Federation already existed at that point, and many were active starfarers. Quite possibly one of them owned the real estate on which the Ba'ku ended up squatting, and the ownership then moved on to the Federation.
We don't know if this was the case. We also don't learn if and when the Ba'ku realized they were illegally squatting. All sorts of options are open for interpreting this, then.
What doesn't easily add up there is the way the various players were deceived about the reality of the situation. The Son'a of course knew the Ba'ku were no primitives in need of Prime Directive "protection", that is, denial of say in their own affairs. The cover story of the joint operation in turn was that they indeed were primitive natives, or so it sounded like. But the team studying the place must have realized that a single iron age village cannot be native - iron age villages require an extended infrastructure in order to "naturally" exist. So Dougherty's folks must have realized the Ba'ku were colonists, regardless of whether those had honestly forgotten all about their advanced past or whether they were just slumming it out below their true level of civilization. Why not come clean about that colonial nature, which would then make explicit the squatting issue and erase the rights of the Ba'ku? Why claim to the UFP Council that the team was studying natives? Or was that claim only to outsiders like Picard? Even if so, why tell the lie when the truth would have carried benefits?
Timo Saloniemi