BRIEF-JPMorgan suspends YouTube advertising-spokeswoman
* JPMorgan Chase & Co suspends YouTube advertising, bank spokeswoman says Further company coverage: (Reporting by David Henry)
Nov 28 Harsco Corp
* Harsco lands contract expansion for steel mill services; projected revenues of $50 million
* Harsco corp says multi-year expansion of its steel mill services contract at Evraz Pueblo Source text for Eikon: Further company coverage:
* Alphabet falls after YouTube ad row; top drag on S&P, Nasdaq
WASHINGTON, March 23 Jay Clayton, the Wall Street attorney tapped by President Donald Trump to lead the U.S. Securities and Exchange Commission, on Thursday defended himself against Democrats' charges that multiple conflicts of interest would force him to miss too many SEC votes.