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

These crawls are part of an effort to archive pages as they are created and archive the pages that they refer to. That way, as the pages that are referenced are changed or taken from the web, a link to the version that was live when the page was written will be preserved.Then the Internet Archive hopes that references to these archived pages will be put in place of a link that would be otherwise be broken, or a companion link to allow people to see what was originally intended by a page's authors.The goal is to fix all broken links on the web . Crawls of supported "No More 404" sites. ||||| Beware of decorative toilet paper that could hide signs of illness. 
  
 Credit: BMJ Case Reports View full size image 
  
 Toilet paper containing red ink could disguise a dangerous medical condition, one doctor believes. 
  
 Paper that is decorated with pictures or designs that include red ink could look bloody when wet, and traces of red blood in the toilet are one of the most common signs of colon cancer, colorectal surgeon Dr. Guy Nash of Poole Hospital, in England, wrote in a letter published Jan. 15 in the journal BMJ Case Reports. 
  
 "Those patients bleeding will miss real blood, and those not bleeding will report 'blood' in the toilet mistakenly," Nash said. 
  
 Colon cancer, or colorectal cancer, develops in the cells that line the large intestine (colon) or rectum. The condition caused about 50,000 deaths in the United States in 2013, according to the National Cancer Institute, and many people suffer few symptoms early on. [10 Do's and Don'ts to Reduce Your Risk of Cancer] 
  
 Nash said he saw what looked like blood in his own toilet, but it turned out to be red hearts adorning the bathroom tissue. He said manufacturers and the public should be aware of this risk. 
  
 "In my view, it is irresponsible of the makers to have not considered this," Nash told LiveScience in an email, adding that inks of other colors would not create this difficulty. 
  
 Not all medical professionals view it as a concern, however. 
  
 "I think it's nonsense," said Dr. David Bernstein, a gastroenterologist at North Shore University Hospital in Manhasset, N.Y. Bernstein said he has never seen a patient who confused colored toilet paper with signs of colon cancer. 
  
 "If someone sees blood, they should call their doctor, not panic, and have it appropriately evaluated," Nash said. He also said healthy people should have regular colonoscopies, which are widely recommended as a screening tool for colorectal cancer. 
  
 Bloody stool is much more commonly associated with hemorrhoids than colon cancer, both doctors said. Other causes could include an anal fissure, diverticular disease or colitis. 
  
 And red toilet paper isn't the only thing people may mistake for blood. Nash said some of his patients report bleeding that turns out to be beetroot eaten three days earlier. 
  
 Follow Tanya Lewis on Twitter and Google+. Follow us @livescience, Facebook & Google+. Original article on LiveScience. |||||
Output:
What looks like blood in your toilet bowl could actually be red ink seeping from your toilet paper, says colorectal surgeon Guy Nash—but he's still upset about it. That's because people who use toilet paper decorated in red may think they're seeing blood in the toilet when there isn't any, and vice versa. At stake is a possible colon-cancer diagnosis. "Those patients bleeding will miss real blood, and those not bleeding will report 'blood' in the toilet mistakenly," Nash tells LiveScience. "In my view, it is irresponsible of the makers to have not considered this," he said. But not all medical experts are on board: "I think it's nonsense," said a New York gastroenterologist who has never seen red blood confused with red-colored toilet paper. In any case, says Nash, "If someone sees blood, they should call their doctor, not panic, and have it appropriately evaluated." Even then, rectal bleeding is fairly common and is usually caused by a small anal tear or a swollen blood vessel—not colon cancer, notes WebMD.