trouble spot 
noun
A place where difficulties regularly occur, especially a country or area where there is a continuous cycle of violence: she is famed for her reports from the world’s trouble spots...
- According to the mayor, Paradise Alley has been a trouble spot in town for as long as anyone can remember.
- An area of Ferrybank is also known to be a trouble spot and in private estates on the other side of the city anti-social behaviour is taking place.
- He removed a small bit that was just in front of the burned area revealing the trouble spot.
- insouciant
- insouciantly
- insource
- insourcing
- insp.
- in spades
- inspan
- in specie
- inspect
- inspection
- inspection chamber
- inspection copy
- inspection pit
- inspector
- inspectorate
- inspector general
- inspectorial
- inspector of taxes
- inspectorship
- inspiration
- inspirational
- inspirationally
- inspiratory
- inspire
- inspired