Brown Recluse Spider Bite â Stages, Symptoms, Treatment, Pictures The mouth parts on most spiders are not strong enough to bite into the human skin and hence a large percentage of the spider population across the United States is actually harmless.
Answer: The protection of U.S. sovereignty, territory, domestic population, and critical defense infrastructure against external threats and aggression, or other threats as directed by the President. The Department of Defense is responsible for homeland defense.
Four-star Marine general led the U.S. Southern Command and troops in Iraq; his son was killed in Afghanistan. Updated Dec. 7, 2016 2:53 p.m. WASHINGTONâDonald Trump has picked retired Marine Gen. John Kelly to head the Department of Homeland Security in his new administration, people familiar with the decision said Wednesday.