After a brief lull, tension along the Assam-Mizoram border escalated again on Saturday after unidentified miscreants bombed a government educational institute in Hailakandi district, triggering fear among locals, a senior police officer said. Two Assam ministers Atul Bora and Ashok Singhal visited Aizawl and both the state governments subsequently issued a joint statement pledging to maintain the status quo and …