Will dwi felony bar me from employment with homeland security or government jobs?
Felons having trouble with jobs is a topic asked on the site a dozen or so times per week.
http://www.funadvice.com/q/convictedfelonsunabletofind_work
If you do a site search for felon (http://www.funadvice.com/search?q=felon+&sort=relevance), you will find the above question and many others which have already been answered.
Best, Dara aka editor