7/21/2011 - NASA - Comet Elenin will be visible to the naked eye by the end of August, NASA say

Here is a screenshot of the NASA website when they had Elenin listed on their website prior to its deletion later on.. 

Obviously there is reason for "CONCERN"  otherwise why delete this from the website? 

solarsystem.nasa.gov... 

Screenshot here .. 
"NASA discovered comet Elenin will be visible to the naked eye by the end of August 2011 .." 

NASA Sends Warning Video to ALL Employees Today to PREPARE! June 10, 2011 

YouTube Link

www.nasa.gov...