In fact, if you look at Amazon or Google, a piece of information actually exists in multiple locations around the world, so it would be difficult to even identify where that information is, let alone go after it.

NPR: Will 'Cloud Computing' Work In White House?

Any time people devote themselves to something it can be difficult for them to step aside and let a new team in.

FORBES: Connect

Either way, it will be difficult for the government to push for criminal charges when the SEC let Goldman go without admitting or denying wrongdoing.

FORBES: Goldman Sachs Subpoena Doesn't Mean Much...Yet

Well, it is difficult to be objective about your own performance at the best of times, let alone when one is demonised by the media.

BBC: You are in: Health

It also wouldn't be difficult for Apple to develop a software-hardware combination that would let its computers record TV shows, much like Hewlett-Packard 's (nyse: HPQ - news - people ) Media Center PC already does.

FORBES: Magazine Article

It seems to be difficult to even plan a date for a meeting to discuss what to do, let along actually decide what to do.

FORBES: Solving the Eurozone Crisis

So unless it is prepared to let power shortages continue restricting growth, Brazil may be better off switching back towards a free market, difficult though it may be to get right.

ECONOMIST: Brazil's energy crisis