The president has called ebola an international crisis and a threat to national security. why is this disease considered a threat to national security? the disease travels across international borders when people travel who have it. the disease appears and disappears throughout history. the disease is killing many people in africa. the disease is killing medical workers.

A

Explanation:

If a person who has ebola get on a flight to lets say germany... everyone on that flight and people at the termanal has came into contact with cross contamination

(202 bc - 220 ad) dynasty started by lui bang; a great and long-lasting rule, it discarded the harsh policies of the qin dynasty and adopted confucian principles; han rulers chose officials who passed the civil service exams rather than birth; it was a time of prosperity