• The yield on 10-year Treasuries – the benchmark price of global capital – surged 30 basis points in just two days last week to over 3.9pc, the highest level since the Lehman crisis. Alan Greenspan, ex-head of the US Federal Reserve, said the abrupt move may be “the canary in the coal mine”, a warning to Washington that it can no longer borrow with impunity. He said there is a “huge overhang of federal debt, which we have never seen before”.
• David Rosenberg at Gluskin Sheff said Treasury yields have ratcheted up 90 basis points since December in a “destabilising fashion”, for the wrong reasons. Growth has not been strong enough to revive fears of inflation. Commodity prices peaked in January and US home sales have fallen for the last three months, pointing to a double-dip in the housing market.
• Mr Rosenberg said the yield spike recalls the move in the spring of 2007 just as the credit system started to unravel. “The question is how the equity market is going to handle this back-up in rates,” he said.

I’m looking at numbers here, not advancing any political agenda.

Related: Social Security Payout to Exceed Revenue this Year

• This year, the system will pay out more in benefits than it receives in payroll taxes, an important threshold it was not expected to cross until at least 2016, according to the Congressional Budget Office.
• The problem, he said, is that payments have risen more than expected during the downturn, because jobs disappeared and people applied for benefits sooner than they had planned. At the same time, the program’s revenue has fallen sharply, because there are fewer paychecks to tax.
• Analysts have long tried to predict the year when Social Security would pay out more than it took in because they view it as a tipping point — the first step of a long, slow march to insolvency, unless Congress strengthens the program’s finances.