Washington Examiner 
April 16, 2013
MSNBC’s Chris Matthews theorized this evening that the bombing in Boston today might be the result of a Tax Day protest – as it occurred on the deadline date for filing federal income taxes.
“As you point out, and I just forgot, I filed already. It’s filing day for the federal income tax, which does cause some emotions around the country – sometimes in the wrong parts of the brain anyway,” Matthews said during his show.