Today's edition of quick hits:
* A crushing day in Yemen: "Four suicide bombers hit a pair of crowded mosques in Yemen's capital of Sanaa on Friday, killing at least 137 people and injuring more than 300 others, officials told NBC News. The ISIS affiliate in war-torn Yemen claimed responsibility for the attacks, according to Flashpoint Intelligence, a global security firm and NBC News consultant."
* Fracking: "A day after President Barack Obama signed an executive order to cut the U.S. government's greenhouse gas emissions, his administration is requiring companies that drill for oil and natural gas on federal lands to reveal the chemicals used in hydraulic fracturing."
* Confirming a successor will be impossible: "The head of the Bureau of Alcohol, Tobacco, Firearms and Explosives plans to step down at the end of the month after more than three years of leading the agency, according to an official announcement on Friday."
* It seems as if the Kappa Delta Rho fraternity at Penn State University has absolutely no idea what "satire" means.
* Breathing room: "U.S. Senate Democrats and Republicans agreed on Thursday to delay until April 14 the Senate Foreign Relations Committee's vote on legislation that would force President Barack Obama to submit any nuclear agreement with Iran for Congress' approval."
* The probes in New Jersey aren't over: "Federal prosecutors issued a new subpoena to the Port Authority of New York and New Jersey this week seeking possible evidence of claims New Jersey Gov. Chris Christie's administration retaliated against the Democratic mayor of Jersey City."
* The country deserves better than this: "Republicans are trying to transform the Federal Communications Commission's net neutrality rules into the same sort of drawn-out controversy as Benghazi and Obamacare -- providing a new springboard for sustained political attacks on the White House."
* Sen. Ted Cruz (R-Texas) told an audience this week, "There are 110,000 agents at the IRS. We need to put a padlock on that building and take every one of those 110,000 agents and put them on our southern border." How many IRS agents are there, really? Cruz was off roughly by a factor of 10.
* Resignation does not mark the end of Schock's troubles: "Federal officials are looking into the spending history of embattled Rep. Aaron Schock (R-Ill.), who announced earlier this week he would resign in the wake of a series of scandals, according to NBC News."
* Paul Krugman: "[O]utrageous fiscal mendacity is neither historically normal nor bipartisan. It's a modern Republican thing. And the question we should ask is why.... Look, I know that it's hard to keep up the outrage after so many years of fiscal fraudulence. But please try. We're looking at an enormous, destructive con job, and you should be very, very angry."
* Bill O'Reilly used to be impressed with President Obama's decision to order the strike on Osama bin Laden. It now appears that support has waned over the years -- he now believes Obama "had nothing to do" with the killing of the al Qaeda leader.
Anything to add? Consider this an open thread.