In this task, you are given a text of many news articles seperated by special token "|||||". Your task is to summarize them.

Focused crawls are collections of frequently-updated webcrawl data from narrow (as opposed to broad or wide) web crawls, often focused on a single domain or subdomain. ||||| Updated, 7:34 p.m. Friday, March 5: Police are investigating allegations that potentially dozens of teenagers, including students at Chenery Middle School, circulated a nude photo of an underage girl via their cell phones, according to police and school officials. 
  
 Lt. Richard Santangelo, a police spokesman, confirmed Friday that Belmont detectives and the Middlesex District Attorney’s Office are “investigating a report of possible child pornography on a student’s cell phone at the middle school.” 
  
 So far, no one has been charged and police are releasing few details because the investigation is ongoing and the individuals involved are minors. 
  
 Santangelo said police don’t believe any adults were involved in the incident. 
  
 Records show officers first responded to the school at 2:30 p.m. on Thursday, but Santangelo declined to say who reported the allegations. Santangelo declined to say how many Chenery Middle School students were involved or if the teen in the photo was a student at the school. 
  
 However, Bill Grubb, the assistant headmaster at the upper middle school, revealed more details on Thursday night at a meeting with parents at the McCall Middle School in Winchester, where he is among the finalists to take over as that school’s next principal. 
  
 Grubb, who spent the day in Winchester, said he’d checked in with administrators in Belmont and learned that a girl had allegedly sent a revealing photo of herself to a boy using her cell phone. Grubb said the boy then allegedly sold the photo to other teenagers for $5 apiece. 
  
 Grubb said 40 to 50 cell phones may have been involved in the incident. 
  
 Grubb’s comments were in response to a parent’s question about the school’s role in protecting children from the dangers of social networking. 
  
 At around 4 p.m. on Friday, Chenery Headmaster Debbie Alexander sent out a notice on the school’s LISTSERV stating that while the discovery was made at the school, the activity happened off school grounds. Once it came to her attention that a student had an inappropriate photo stored on a cell phone, she immediately reported the issue to the police. 
  
 “Students have very powerful technology at their disposal, and they are very savvy at using it,” she wrote. “As this situation demonstrates, technology used for the wrong purpose can be very dangerous and potentially illegal.” 
  
 Incidents of sexting — sending sexually explicit images by cell phone — have been on the rise in local communities and have raised questions about child pornography laws, especially when the individuals sending the images are minors themselves. |||||
A Massachusetts middle school is caught in a sexting scandal after an 8th-grade boy allegedly sold naked pictures of his girlfriend to fellow students for $5 a pop. Since the girl is only in 8th grade, the photo she sexted of herself and her beau's financial transactions may violate child pornography laws, police say. The school released a statement pointing out the incident took place off school grounds. That did little to ease parents' minds. "It's horrifying, it's absolutely horrifying," a mom tells ABC News.