>Iran readying sleeper cells to attack US, Europe
timesofisrael.com
>exercise here through April 30
>...simulated nuclear detonation
globalsecurity.org
>Mayday is an emergency procedure word used internationally as a distress signal in voice-procedure radio communications.
>9-1-1, an emergency telephone number in most of North America
>September 11 attacks or 9/11, a series of terrorist attacks on the United States in 2001
en.wikipedia.org
>26 Apr 2011, Wikileaks: Al-Qaeda plotted chemical and nuclear attack on the West
>Khalid Sheikh Mohammed was involved in a range of plans including attacks on US nuclear plants and a 'nuclear hellstorm' plot in America
>One of the terrorist group’s most senior figures warned that al-Qaeda had obtained and hidden a nuclear bomb in Europe that would be detonated if Osama bin Laden was killed or captured.
>MAY 1 [May Day], 2011, Bin Laden Is Dead
nytimes.com
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while certain dates have higher risk because of some attendant significance, attacks can come at any time. avoid cities