Zippy can you give an example of when somebody waited to long to claim something so big?
I can't. It doesn't sit right with terrorism. It's normally claimed within 24 hours to achieve maximum impact and destruction. No one feels particularly terrorised when they think there is every chance it could be an accident!!
Those stolen passports would only ring alarm bells if they had the same number as those stolen, rather than the same name. Also, Malaysia is a country which allows hundreds of thousands of asylum seekers to pass through it every year, on their way to seek asylum in other countries by arriving there illegally. If anyone turns a blind eye to fake IDs, it's Malaysia!
At this stage I feel like terrorism is increasingly unlikely. It still can't be ruled out, but if it had been claimed there would be a huge impact on air travel right now, as well as immense fear. Groups don't wait to claim - it lessens the impact.