The last test, conducted in January, also ended in failure.
The recent nuclear test conducted by the DPRK is the 2054th one on the earth.
One test, conducted last spring during the Arizona primary, was disrupted by computer problems.
The 2003 test that ensnared Sosa was the first such test conducted by Major League Baseball.
"The nuclear test conducted in our nation this time is the Earth's 2,054th nuclear test.
Similar photos came out after North Korea's fourth nuclear test, conducted last month.
The most recent test, conducted in September, was widely considered to have been a hydrogen explosion.
Mr. Epstein said a test conducted by the F.B.I. in his first challenge showed the lack of rigor.
Howard was also issued a public warning for his first positive test conducted by the United States Anti-Doping Agency.
But the panel also found that a more sophisticated second test, conducted after the initial screening proved positive, was accurate.
A third test, conducted off Port Jackson, Louisiana on 8 June last year, produced the desired results, Hoek said.
