Each year the Internal Revenue Service loses over $300 billion to tax evasion. So, in an effort to curb such monumental depletions, the IRS is "reportedly using data from social media on people who file fishy-seeming taxes or don't file at all." Yes, that means your Facebook, Twitter, and Instagram accounts could very well be monitored by the IRS (if you've been ducking your tax payments, that is).
According to Marketplace, the IRS is only looking at public profiles, and the data is subsequently "added to the information the agency already has on people, such as Social Security numbers, health records, banking statements, and property."
Data mining is nothing new, sure, but one can't help but wonder what other information the government is collecting.
Long story short: Pay your taxes.