The arrests come after investigators in the Connecticut elementary school shooting issued stern warnings to potential copycats.

CNN: SHARE THIS

Still, nurses who have long prided themselves on their blanket-swaddling technique sometimes called "baby origami" now are delivering stern warnings about how easily blankets can get loose.

WSJ: How to Swaddle an Infant Safely

In particular, how the unnamed man with extensively drug-resistant TB could have been allowed to leave the United States for a European wedding and honeymoon, and how he could have then flown back from Prague to Montreal despite stern official warnings not to travel on commercial aircraft.

NPR: Man Eluded Attempts to Control Deadly TB Strain

Or at least provide stern and familiar warnings as to the consequences of illegal abuse?

FORBES: Magazine Article

As a result, the crisis has flared up anew, replete with a stern public reprimand from Mr Obama, condemnations from governments around the world and renewed warnings from the Palestinians that their president, Mahmoud Abbas, would at last throw in the towel.

ECONOMIST: Israel's settlement policy