Liz Halloran

The opportunistic political sentiment of never letting a crisis go to waste (see: Rahm Emanuel, among others) has been reframed since the Boston bombings by those seizing on the attack as certain evidence of their positions.

As investigators combed through evidence in the deadly Boston Marathon bombings, seeking both motive and perpetrator, we turned Tuesday to a security expert for guidance on how the investigation may be unfolding.

Bryan Cunningham, a former CIA officer, assistant U.S. attorney and deputy legal adviser for the National Security Council, served in both the Clinton and George W. Bush administrations. He is now a senior adviser at the consulting firm the Chertoff Group, co-founded by former Homeland Security Director Michael Chertoff.

Two county prosecutors fatally shot in Texas. Colorado's top prison official gunned down. And a dozen more members of the U.S. justice community — ranging from police to judges — victims of targeted killings since the beginning of the decade.

What's going on?

The halting testimony of former Arizona Rep. Gabrielle Giffords, gravely injured in a mass shooting two years ago, may have provided the most gripping moments of the Senate's first gun control hearing this session.

But the star witness on Capitol Hill on Wednesday was Wayne LaPierre, the National Rifle Association's top lobbyist.

President Barack Hussein Obama, sobered but resolute after four years as the nation's first African-American head of state, began his second term Monday with an ardent defense of government as essential to the nation's economic and moral fiber, and a call to citizens to accept their obligation to shape the national debate.

President Obama's historic plunge Wednesday into the politics and realities of gun control in America has mobilized advocates on both sides of the issue.

But though his major proposals, from banning assault rifles to more stringent background checks and ammunition limits, are being rolled out in the shadow of the school massacre in Newtown, Conn., their Capitol Hill prospects remain highly uncertain given long-standing resistance to such efforts.

You may have heard that banned-for-life pro cyclist Lance Armstrong, in an interview with Oprah Winfrey, has admitted to doping.

You may have heard that he apologized (tearfully, reportedly) to employees at Livestrong, the foundation he started in 1997 after surviving testicular cancer.

You may have heard that he reached out to make nice with people in the cycling world whom just months ago he was branding as liars and worse, and that he may pay back some bike team sponsor money.

Feel manipulated yet?

Fiscal cliff week has mercifully ended with a deal done, hurricane relief approved, President Obama vacationing, and both parties bickering internally over what was won — and lost — in the early hours of the new year.

What we have found most intriguing is the vigorous post-facto wrestling within the liberal community over what the fiscal cliff negotiations say about President Obama.

No one can argue the setback to organized labor served up by Michigan's new law, which bars unions from requiring workers to pay dues even if they don't join their workplace bargaining unit.

Tuesday's passage of "right to work" legislation in a state dominated by the auto industry and the historically powerful United Auto Workers was a surprising "smack in the face" to unions, says labor expert Lee Adler, especially given President Obama's nearly 10-point win in the state last month.

The big demographic story out of the 2012 presidential election may have been President Obama's domination of the Hispanic vote, and rightfully so.

But as we close the book on the election, it bears noting that another less obvious bloc of key swing state voters helped the president win a second term.

A handful of congressional Republicans after finishing their Thanksgiving dinners decided to give anti-tax crusader Grover Norquist the brushoff, saying they wouldn't abide by his "no new taxes" pledge as they work on a budget deal.

Breathless coverage ensued.

"Move over, Grover?" read one headline.