And that is why the transition period was announced at the same time that the rule was announced.
Beyond the expense associated with adding a touch screen, and beyond the corporate decision to delay their inclusion, there are a number of reasons why the touch transition is years away from completion.
If the action group that is set to meet this weekend on Syria is successful at re-implementing the peace plan and coming up with guidelines for a Syrian-led political transition, why should Syrians or the administration have confidence that it's actually going to work, given that Annan's former peace plan didn't?
But their prevalence does help to explain why commissioners often find the transition back to national politics somewhat difficult to manage.
Mr Obama's picks may be one reason why the approval rating of his transition is high, according to polls, and well above that of George Bush or Bill Clinton at similar points.
The transition from coal to gas explains why U.S. carbon emissions declined 8% from 2011 to 2012, reaching the lowest level since 1992.
Why then put the squad through a managerial transition when the feeling around the club is that it could be heading toward dynasty status?
Williams explained very simply why he was leaving and that such a long transition was both unrealistic and unnecessary.
That helps explain why "a lot of great ideas occur at transition times, " when people are waking up or falling asleep, bathing, showering or jogging, says Jennifer Wiley, a psychology professor at University of Illinois at Chicago and lead author of a 2012 research summary in Current Directions in Psychological Science.
That is yet another reason why Myanmar's neighbours might consider pressing harder for a negotiated transition.
And that's why I've begun to end the war in Iraq through a responsible transition to Iraqi control.
But the transition can be challenging, especially for longer assignments of three to five years, which is why more companies are offering shorter "commuting" assignments of a year or less.
WSJ: Younger Workers Can Jumpstart Careers by Taking Jobs Abroad
Here's what else we know: In addition to last month's fresh batch of iMacs, new iPods would explain why Apple guided its current-quarter earnings lower during its latest earnings call citing an upcoming "product transition" (see "Apple Tips Its Hand").
The new models, and lower prices, partly explain why Apple guided its current-quarter earnings lower during its latest earnings call, citing an upcoming "product transition" (see "Apple Tips Its Hand").
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