By Reuters Staff2 Min ReadABUJA( Reuters)-Nigerian security agents have rescued six people abducted by armed men from a university in Abuja this week, in what was a rare kidnapping at a higher education institution in the country’s capital, police said on Friday. Gunmen abducted four members of staff and two of their children from the University of Abuja on Tuesday, which has led to increased military checkpoints in and around the city and stop and search operations by police. Gangs of armed men