The Food and Drug Administration admitted Thursday that it mistakenly approved a patch for injured knees last year after being pressured by members of Congress and the manufacturer.
Internal documents demonstrate that agency’s scientific reviewers repeatedly determined that the device, known as Menaflex and manufactured by ReGen Biologics Inc., was unsafe because the device often failed, forcing patients to get another operation.




The world moved a step closer to developing an enduring defence against AIDS after researchers in Thailand unveiled the results of a vaccine trial on Thursday that cut the risk of becoming infected with the HIV virus by nearly one-third and will not lead to secondary complications.
A large portion of the moon's surface may be covered with water. That is the surprising finding of a trio of spacecraft that have turned up evidence of trace amounts of the substance in the lunar soil.
Four Canadian studies involved about 2,000 people, health officials told CBC News. Researchers found people who had received the seasonal flu vaccine in the past were more likely to get sick with the H1N1 virus.
The Danish forces claimed that the book, by Thomas Rathsack, could compromise national security because it describes operations in which he was involved in Afghanistan and Iraq.
Melting ice is pouring off Greenland and Antarctica into the sea far faster than was previously realised because of global warming, new scientific research reveals today.
The Obama administration has decided not to seek legislation to establish a new system of preventive detention to hold terrorism suspects and will instead rely on a 2001 congressional resolution authorizing military force against al-Qaeda and the Taliban to continue to detain people indefinitely and without charge, according to administration officials.





























