nprnews_____ = ||| lubuntu at wor3 89S7|||House Cancels Thursday Session After Police Warn Of Possible Attack On Congress||| kickerpage = |||no kicker pagenpr for NPRNEWS||| summarynpr = |||The U.S. Capitol Police says it is aware of and preparing for a threat by an identified militia group to breach the Capitol complex on Thursday.

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A section of fencing blocks the Capitol grounds at sunset on Monday.

Jacquelyn Martin/AP

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Jacquelyn Martin/AP

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