This except from the Nation Catholic Register is a good read on this topic:
Author: Mark Shea
Click on the link to see the entire post. This is how he answers the question:
There are several things worth noting here. The first is that sweeping judgments about the disbelief and pride of those who receive in the hand and touch the Host are woefully ignorant of the long and varied history of Eucharist piety in the Catholic Church. Such judgments spit on the grave of St. Tarcisius, a young acolyte who was martyred carrying the Eucharist to Christians in prison. It also overlooks all sorts of witnesses from the early centuries of the Church to the practice of receiving or carrying communion to others in the hand (see, for instance, the testimonies from ancient witnesses at this link). And, most of all, it overlooks the fact that Holy Church has–and has exercised–its authority to say that believers may, if they choose, receive communion in the hand reverently. Roma locuta est. Causa finita est. Rome has spoken. The matter is at an end.
Is it possible to receive in the hand irreverently? Of course. It’s also possible to receive on the tongue irreverently. If a person is determined to be irreverent, there is no limit to human inventiveness when it comes to sin and sacrilege and no sure fire way to guarantee that it will not happen by restricting communion to being received on the tongue. After all, some activist bent on making some blasphemous statement can just as easily spit the Eucharist out as mishandle it. But it would be foolish to declare that all those who receive on the tongue are therefore pridefully aiding and abetting such sacrilege. Same with my reader: she obviously receives reverently and does not deserve the judgement being meted out Catholics who regard themselves as more qualified than the Magisterium to decide who is and is not a faithful Catholic.
And that’s the real irony here. Sure, it’s good to be concerned about treating the Eucharist lightly and sacriligeously. But for Paul, one of the main ways we can insult the Eucharist is by treating brothers and sisters with contempt, particularly at the liturgy. So he has some rather choice words for the Christians at Corinth who humiliate fellow believers in 1 Cor 11:17-22. And that’s the key here. The reality is,the only pride at work in this conversation is that of Catholics passing judgement on people doing what Holy Church tells them they have perfect freedom to do. If you are settled in your heart that you are acting in reverence then do not let judgmental fellow Catholics disturb that peace. They have a perfect right to receive the Eucharist on the tongue according to their conscience and you have a perfect right to receive it in the hand according to yours. You have not judged them, but they have judged you. If they are really worried about things that insult the Eucharist, they should begin by looking in the mirror, not at the people they condemn without just cause. Read Romans 14 and apply it here. You’ve done nothing wrong.