A limited state of emergency is in force in several areas of Trinidad and Tobago, as the government moves to tackle a recent spike in violent crime.The measures, announced on Sunday by Prime Minister Kamla Persad-Bissessar, include an overnight curfew.Ms Persad-Bissessar said they were taking action in what she called "hot spots" as part of a wider effort to tackle "wanton acts of lawlessness".The opposition said it was a "panic response" by the government.The declaration of emergency rule in six areas, which will last 15 days, came after the country...