WOODBURY - A string of arrests of Long Islanders accused of sharing and possessing child pornography has local parents concerned, and rightfully so, according to experts. Tech crime experts say the Internet and advanced smart phones with cameras have made it increasingly easier for people to access and share graphic images of children being victimized. Studies have shown that people who possess child pornography are more likely to sexually abuse children. The peer-to-peer software typically used to share child porn online can be difficult to trace, according to experts at Suffolk's Computer Crimes Unit. Officials say there are laws requiring Internet providers to block user access to child porn websites and notify authorities about file-sharing. Still, the unit says the best advice for parents is to carefully monitor what their children do online.Former theater director accused of possessing child pornSayville school custodian accused of collecting child pornTeacher accused of sharing child porn pleads not guiltyEast Moriches man accused of child porn possession