Table of Contents

STILL A MYSTERY: The identity of the person who poisoned Maryann Wenli Ma and Bill Wenling Zheng, shown here with their son, remains unknown.
On September 17, the Nuclear Regulatory Commission (NRC) turned down a petition by Maryann Wenli Ma, the visiting Chinese postdoc at the National Institutes of Health who was poisoned in 1995 with 32P while 17 weeks' pregnant, and her husband, Bill Wenling Zheng, also an NIH postdoc, to suspend or revoke NIH's nuclear materials license. NRC, however, did cite NIH for two violations: exceeding the annual occupational radiation dose limit for an employee (for Ma), and exceeding the NRC dose limit for a member of the public (for one of the 25 NIH employees...

Interested in reading more?

Become a Member of

Receive full access to digital editions of The Scientist, as well as TS Digest, feature stories, more than 35 years of archives, and much more!
Already a member?