There is no danger of losing Pulau Pisang to Singapore as Malaysia clearly has sovereignty over the island.
Johor Mentri Besar Datuk Abdul Ghani Othman said that this was despite Singapore operating a lighthouse on the 154ha island.
He He said the ownership of the island was based on a treaty between Sultan Ibrahim Sultan Abu Bakar and the British in 1900, which clearly stated that Malaysia had sovereignty over the island. Read more here. (Source: The Star Online)
That's nice to hear. But how sure are you Mr. MB, for argument sake, that there won't be another letter after the treaty you mentioned was signed, from someone signing off with " I have the honour to be, Sir, Your Obedient Servant", writing to inform that a particular state government does not claim "ownership" of "Bananeira Ilha" (a direct translation of "Pulau Pisang" to English and later to Portuguese. While we are at it, let's ramble on. Why not change the name to portuguese? "Pendra Branca" did it for them. Look out! Here comes "Bananeira Ilha". Wink!) Maybe you would say there is no such letter but what if, hypothetically speaking that is, what if the other side suddenly produces the same in court, in case it does go to court?
After all have we not shown to the world recently that we have slight issues in " locating" important government letters, old letters (that may become important documentary evidence) especially.