Read more lockdown stories on Newserhttp://www.newser.com/taggrid/45309/lockdown.htmlhttp://img1-cdn.newser.com/images/newser-black250x40.gifhttp://www.newser.com/2012 - Newseren-usNewser Feed GeneratorSat, 26 May 2012 09:23:03 CDThttp://www.newser.com/story/104704/ohio-nasa-facility-locked-down-reports-of-gunman.html<img src='http://img2-cdn.newser.com/getimage.aspx?mediaid=778193&width=45&height=45&crop=Y&updateddate=20110331181753' border='0' />A sprawling NASA research center next to Cleveland's airport is under lockdown amid reports of a possible gunman. NASA Glenn Research Center spokeswoman Sally Harrington wouldn't say whether police were checking for a gunman but she says the complex was placed under "complete lockdown" this morning.In this combo made from file photos, a Continental Airlines plane takes off from Cleveland Hopkins Airport over the NASA Glenn Research Center in Cleveland, top.http://www.newser.com/story/104704/ohio-nasa-facility-locked-down-reports-of-gunman.htmlFri, 05 Nov 2010 09:56:35 CDThttp://www.newser.com/story/73439/shooter-drew-attention-with-internet-posts.htmlWill McCahill<img src='http://img1-cdn.newser.com/getimage.aspx?mediaid=307392&width=45&height=45&crop=Y&updateddate=20110331212101' border='0' />Maj. Nidal Malik Hasan, the man who killed 12 today at Fort Hood, had been on federal law-enforcement authorities’ radar for months after Internet postings about suicide bombings and the like. AP sources say the feds are still trying to confirm that the Army psychiatrist authored, in particular, a blog...This photo from the Center for the Study of Traumatic Stress Web Site shows Nidal Malik Hasan.http://www.newser.com/story/73439/shooter-drew-attention-with-internet-posts.htmlThu, 05 Nov 2009 19:54:29 CST