The Trump administration is worried that nuclear weapons and materials in Pakistan could land up in the hands of terror groups and the concerns are aggravated by the development of tactical weapons. <br/><br/>The senior Trump administration official said that during a compressive review, one of the major issues that continually came up for discussion and is very important to the US is the nuclear danger in the region. That is a critical element of the South Asia strategy, the official told reporters during a conference call.<br/><br/>The South Asia strategy announced by US President Donald Trump on Monday notes that the nuclear weapons or materials could fall" into the wrong hands, the official said. The official said it is due to this that the strategy also focuses on confidence building measures between India and Pakistan and encourages them to come to the negotiating table.