IRS Scam/Fraud

Today I received a phone call from someone claiming to be an IRS Agent.  He wanted to warn me that this IRS Investigation unit is going back 7 years and looking at the back taxes.  This guy would NOT stop talking. He spoke very fast, with a heavy foreign accent. When I told him he was speaking too fast for me to understand his heavy accent.  The he HUNG-UP on me.

 Photo Credit-Google Images

Artist-Unknown

I went to IRS.gov, and sure enough there was a "warning" about people who posing as IRS agents. 

Now I can have 'peace-of-mind'.  Should I be concerned that my tax records are out there ?