Malaysia's first submarine, a European-made Scorpene delivered last September, has developed problems that make it unfit for diving, the defence minister said Thursday. The KD Tunku Abdul Rahman sailed into a grand reception last year as the first of two commissioned from French contractor DCNS and Spain's Navantia for a total of 3.4 billion ringgit (961 million dollars). Named after the country's first prime minister, it was hailed as an important acquisition despite opposition allegations of corruption in the deal. "The submarine can still dive but when we detected the defects, we were advised that it should not dive," Defence...