CNA gains exclusive access to Police Coast Guard officers on high-stakes operations out at sea, where they confront threats and emergencies as more than 1,000 vessels move through Singapore’s territorial waters every day. SINGAPORE: It began with a distress call at midnight. Four men armed with knives had boarded a bulk carrier in the Singapore Strait. After they attacked the ship’s second engineer, the other crew members could not find them. “This bulk carrier could be as big as three football