| Adm. John M. Richardson, director of the Naval Nuclear Propulsion Program, speaks during a news conference at the Pentagon, Tuesday, Feb. 4, 2014. The Navy is investigating alleged cheating on tests by senior enlisted sailors training on naval nuclear reactors at Charleston, S.C., officials said Tuesday | 
WASHINGTON     
(AP) -- The Navy said Tuesday it is investigating about 30 senior 
sailors linked to alleged cheating on tests meant to qualify them to 
train others to operate naval nuclear power reactors. Representing 
roughly one-fifth of the reactor training contingent, sidelining 30 may 
put a pinch on the Navy's training program, senior officials said.
 
It
 is the second exam-cheating scandal to hit the military this year, on 
top of a series of disclosures in recent months of ethical lapses at all
 ranks in the military.
 
Unlike an Air Force 
cheating probe that has implicated nearly 100 officers responsible for 
land-based nuclear missiles that stand ready for short-notice launch, 
those implicated in the Navy investigation have no responsibility for 
nuclear weapons. The Air Force probe is centered on Malmstrom Air Force 
Base, Mont., but could spread to its two other nuclear missile bases in 
North Dakota and Wyoming.
 
The Navy said the 
implicated sailors are accused of having cheated on written tests they 
must pass to be certified as instructors at a nuclear propulsion school 
at Charleston, S.C. The Navy uses two nuclear reactors there to train 
sailors for duty aboard any of dozens of submarines and aircraft 
carriers around the world whose on-board reactors provide propulsion. 
They are not part of any weapons systems.
 
The 
accused sailors previously had undergone reactor operations training at 
Charleston before deploying aboard a nuclear-power vessel. In the normal
 course of career moves, they returned to Charleston to serve as 
instructors, for which they must pass requalification exams.
 
Adm.
 John Richardson, director of the Navy's nuclear propulsion program, 
said an undisclosed number of senior sailors are alleged to have 
provided test information to their peers. He was not more specific, but 
one official said the information was shared from the sailors' home 
computers, which could be a violation of security rules because 
information about nuclear reactors operations is classified.
 
"That'll
 be an active part of the investigation to fully understand" the extent 
of any security rule violations, Richardson said.
 
Richardson
 said the alleged cheating came to light Monday when a senior enlisted 
sailor at the Charleston training site reported the cheating to higher 
authorities. Richardson said the unidentified sailor "recognized that 
this was wrong" and chose to report it.
 
The matter was still under investigation by the Naval Criminal Investigative Service.
 
Adm.
 Jonathan Greenert, the chief of naval operations, told reporters at a 
Pentagon news briefing, where he was accompanied by Richardson, that he 
was upset to learn of the breakdown in discipline.
 
"To
 say I am disappointed would be an understatement," Greenert said. "We 
expect more from our sailors - especially our senior sailors."
 
Neither
 Greenert nor Richardson identified the rank of the alleged cheaters but
 described them as senior enlisted members. There are about 150 nuclear 
power reactor instructors at the Charleston site. With about 30 of them 
banned, at least temporarily, from performing their duties, the training
 program might suffer.
 
"I could possibly foresee an impact in Charleston," Richardson said. "We'll see if that is broader."
 
Pressed
 to say how many sailors were implicated in the investigation, 
Richardson said a "ballpark figure" was something like 12 to 20. But a 
short time later another Navy official said the number was approximately
 30 but could change as the investigation unfolds. The official spoke on
 condition of anonymity because the official was not authorized to 
discuss publicly any details beyond what Richardson and Greenert 
disclosed at their news conference.
 
Richardson
 said he could not discuss possible disciplinary action against those 
involved because the probe was ongoing. However, he said that anyone in 
the naval nuclear power program - either in a training setting or aboard
 a ship at sea - who is caught cheating would usually be removed from 
the program and "generally" would be kicked out of the Navy.
 
The
 decision to have Greenert and Richardson announce the cheating 
investigation publicly was a sign of how seriously the Navy takes the 
matter.