Authorities have said they believe the bombs used were fashioned out of ordinary kitchen pressure cookers packed with explosives, nails, ball bearings and metal shards.

NPR: A Look At Boston Marathon Bombing, Investigation

The bombs were crudely fashioned from ordinary kitchen pressure cookers packed with explosives, nails and ball bearings, investigators and others close to the case said.

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The bombs are believed to have been fashioned out of ordinary kitchen pressure cookers packed with explosives, nails, ball bearings and metal shards designed to maim.

NPR: Boston Official: Video Footage Shows Bomb Suspect

In his speech, he appeared to try to rally the public behind the government and against Western pressure, saying ordinary people would ultimately suffer the most from sanctions.

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The media were gentle and admiring, party leaders felt pressure to embrace him, and ordinary Democrats got more excited about him than any politician in at least a decade.

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With the paint, Dr Sullivan says, the researchers could measure pressure in places that were inaccessible to ordinary sensors.

ECONOMIST: Pressure paints | The

So, the museum set out to look at ordinary people complicit in the killing and persecution of millions of Jews through greed, peer pressure, a desire for career advancement or other factors beyond hatred or anti-Semitism.

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