I well remember how Margaret Thatcher flitted off to Williamsburg for the G7 summit during the 1987 election campaign and got great media coverage for it. It looks like Gordon Brown will be doing the same. From 12-13 April Barack Obama is hosting the Nuclear Weapons Summit in Washington DC and either the PM or Foreign Secretary have been invited to attend. I am sure that like me, you can't imagine Brown foregoing an opportunity to appear with President Obama and to bask in his reflected glory.
But these trips can also go very wrong, and there is always a danger when a Prime Minister is out of the country during an election campaign.
Lobby hacks will already be booking their seats on the Prime Ministerial jet in order to be able to witness any calamity first hand, no doubt.