President Obama is scheduled to visit Cuba, starting later today. This will mark the first visit to Cuba by a sitting US President since Calvin Coolidge in 1928. It also marks a milestone in the thawing of relations between the US and Cuba that has taken place under the Obama Administration. At this stage, it seems hard to rationalize much of the antagonism towards reopening diplomatic and commercial relations with Cuba. The economic and political embargo placed on Cuba by the US in the early 1960s has been singularly unsuccessful in bringing down the Castro regime. The US now enjoys full relations with Russia and Vietnam. There are still serious points of difference between the Cuban and US Governments. The US strongly condemns the Cuban Government's record on free speech and political opposition. The issue of compensation for American property seized during the Cuban Revolution still needs to be addressed. But as the era of the Castro's inevitably comes to an end; it strikes me as the height of foolishness to ignore Cuba and its millions of people - the vast majority of whom look upon the people of the United States as their friends. The opportunities presented by a gradual normalization of relations with Cuba seem overwhelming: the chances for international tourism; trade; cultural and sports exchanges. Several million Americans are of Cuban heritage and have relatives in Cuba. And millions more Cubans would welcome the opportunity to improve their economic circumstances - something that can only be enhanced by improved US commercial relations. As President Obama enters his last few months in office, I hope more of us can look upon his opening the door to Cuba as one (among many) courageous; humane; and politically far-sighted policies this President has implemented.