#  Write a Python program to get the number of people visiting a U.S. government website right now.  
 #https://bit.ly/2lVhlLX
import requests
from lxml import html
url = 'https://www.us-cert.gov/ncas/alerts'
doc = html.fromstring(requests.get(url).text)
print("The number of security alerts issued by US-CERT in the current year:")
print(len(doc.cssselect('.item-list li')))
  