Considering the history that the U.S. has had with suicide bombers, I think it would be an excellent idea. We shouldn't go overboard and implement lengthy "security procedures" that leave people dying in the lobbies, but we should be assertive during this sensitive time for all the nations in the world.
Over the past year, terrorist attacks have multiplied in various places, including the United States. While the number of terrorist attacks in the United States is not yet at the level of Europe or the Middle East, it is common knowledge that terrorists plan future attacks on U.S. soil. It is reasonable to increase security personnel at locations with large numbers of vulnerable people, especially hospitals.
No, the U.S. should not beef up its hospital security simply because a hospital in another country has received a terrorist attack. Knee-jerk reactions like that are not usually helpful. If U.S. security analysis did not determine a need for additional hospital security before, then it probably was not needed. If, upon reflection and further analysis, it is deemed necessary, then, yes, beef up security in hospitals.
No, the fact that sixty-three people dies in a bombing in Pakistan should not encourage the United States to beef up its hospital security. The bombing that occurred in Pakistan does not have anything to do with things that go on in the United States. There is nothing that suggests that US hospitals are vulnerable.