The primary test consisted of exposing potted plants, selected from an approved host test list, to attack by the weevil in a no-choice design.
As the peace talks flagged, Hamas began testing its freedom to attack again, saying it would conduct reprisals for Israeli raids that killed militants.
Yet as soon as the UN Security Council issued new sanctions against the regime as a result of the rocket launch, the response was apoplectic, warning of more tests and threatening to attack America.
Nothing is unhackable, of course, and testing how resilient it was to attack was not possible at this stage.
There's another Republican debate Thursday night — another opportunity for the candidates to engage in vaccine denialism and cheer the prospective execution, tonight in Georgia, of a man whose guilt has been called into doubt, but also another chance for the G.O.P. to test various angles from which to attack in the general election.
The moves come as analysts watch closely for signs of cooling ties between North Korea and China, its long-term supporter and only major ally, following Pyongyang's recent nuclear test and its threats to attack South Korea and the United States.
U.S. President Donald Trump ordered the USS Carl Vinson carrier strike group to sail to waters off the Korean peninsula in response to rising tension over the North's nuclear and missile tests, and its threats to attack the United States and its Asian allies.
In the first test, birds that preferred to attack the eyespot-less model first, attacked the second model (with 1 eyespot per wing) after a significantly longer time than birds that attacked the models in a reverse order (Mann–Whitney U Test: W = 942, P = 0.0276).
Along the way, Mr. Kerry reinforced the tough line that the United States has taken since North Korea's inexperienced new leader, Kim Jong-un, fanned tensions by testing a missile in December, carrying out a third nuclear test in February and threatening to attack.
In an interview yesterday, Mr. Levy said he was "very disappointed that this happened" but was careful not to attack the testing company.
