There were fears that Bradt, who holds the record for kayaking down the highest waterfall at 180ft, would never walk again but he is now making a full recovery.
There were fears before negotiations began today that the Iranians could pull out of an agreement struck "in principle" at the beginning of the month in Geneva.
There were fears that an explosion at reactor unit 2 May have damaged the containment vessel, which increases the risk of release of hazardous radioactive materials.
There were fears that food price inflation could take off and that the world could even suffer a repeat of the 2008 food crisis should the big shortfall in wheat output persist.
Billionaire chiefs such as Chelsea's Roman Abramovich and Manchester City's Abu Dhabi United Group can handle the cash catastrophe, but there were fears that United may struggle.
The worry in Canada and elsewhere is that what goes up might come down, and history amply illustrates the economic harm done when housing prices plunge.
There is considerable and justified concern that the United States is falling behind much of the rest of the developed world in these essential disciplines.
To me, when friends or friends of friends ask me about business ideas or starting companies, and they have all these different ideas or solutions thought up - I get concerned.