First the Boston Marathon bombing. Then letters to the Senate and the president testing positive for ricin. Now, reports of suspicious items in the Russell and Hart Office Buildings.

https://twitter.com/JAGraziano/status/324545023754502145

According to Politico, bomb squads are at both buildings:

We will continue to monitor this situation and update with developments.

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Update:

Police are reportedly questioning a man:

More:

Update: