Editing Megacity (section)

===Crime===
[[File:View over Complexo do Alemao (Favela) - From Igreja da Penha - Rio de Janeiro - Brazil - 03 (17556920491).jpg|thumb|Most murders in [[Rio de Janeiro]], Brazil are [[gang]] related and happen in the [[favela]]s]]
As with any large concentration of people, there is usually crime.<ref>{{cite journal |last1=Glaeser |first1=Edward L. |last2=Sacerdote |first2=Bruce |title=Why is There More Crime in Cities? |journal=[[Journal of Political Economy]] |date=1999 |volume=107 |issue=S6 |pages=S225–S258 |doi=10.1086/250109|s2cid=56443047 |url=http://papers.nber.org/papers/w5430.pdf }}</ref><ref>{{cite journal |last1=Yang |first1=V. Chuqiao |last2=Papachristos |first2=Andrew V. |last3=Abrams |first3=Daniel M. |title=Modeling the origin of urban-output scaling laws |journal=[[Physical Review E]] |date=2019 |volume=100 |issue=3 |pages=032306 |doi=10.1103/PhysRevE.100.032306|pmid=31639910 |arxiv=1712.00476 |bibcode=2019PhRvE.100c2306Y |s2cid=201646296 }}</ref> High population densities often result in higher crime rates, as visibly seen in growing megacities such as [[Organised crime in Pakistan|Karachi]], [[Crime in India|Delhi]], [[Crime in Egypt|Cairo]], [[Crime in Brazil|Rio de Janeiro]], and [[Crime in Nigeria|Lagos]].<ref>{{cite book|url=https://books.google.com/books?id=F9mHmudq2scC |title=The Real Population Bomb: Megacities, Global Security & the Map of the Future |author1=P. H. Liotta |author2=James F. Miskel |publisher=Potomac Books |date= 2012-02-01|access-date=2014-05-03|isbn=9781597975513 }}</ref>