Google Adwords detects Malware

Our company website has been running for about a year now on wordpress.

My boss likes to use the paid Google adwords and recently we received notice from Google that our site had malware and they were suspending our adwords account until the site was cleaned up.

Now I’m not an IT person or web designer by trade, so I’m kind of stumbling around here.

In an attempt to diagnose the problem I tried the following sites/scanners:
1.) sitecheck.sucuri.net/
2.) http://www.virustotal.com
3.) http://www.webinspector.com
3.) Google webmaster tools

All of these sites said our website was clean.

My operating theories are:
1.) The website is a redirect. Maybe there was something they didn’t like here.
2.) Maybe there is a wordpress plug-in that wasn’t updated and was exploited. I updated all plug-ins today.
3.) I was running an older version of wordpress 3.5 instead of 3.5.1. Maybe there was an exploit in there.

Does anyone have experience working with Google’s Adwords and know how to find out what caused them to flag our site?

For reference purposes, the offending url was listed as publicsafetyconsultants.net This url redirects to a landing page within our company website, redstonearchitects.com

Thanks in advance for any help.